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51150528000000 = 2123556111323
BaseRepresentation
bin10111010000101011010010…
…00011010011000000000000
320201002221110020120101100000
423220111221003103000000
523201022240132000000
6300442121141200000
713526334524154042
oct1350255103230000
9221087406511300
1051150528000000
11153308a9623370
1258a1394400000
1322706217778b0
14c8b9ad5a5a92
155da821500000
hex2e85690d3000

51150528000000 has 4368 divisors, whose sum is σ = 234792009623808. Its totient is φ = 10948608000000.

The previous prime is 51150527999981. The next prime is 51150528000007. The reversal of 51150528000000 is 82505115.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51150528000007) by changing a digit.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 2223935999989 + ... + 2223936000011.

It is an arithmetic number, because the mean of its divisors is an integer number (53752749456).

Almost surely, 251150528000000 is an apocalyptic number.

51150528000000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51150528000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117396004811904).

51150528000000 is an abundant number, since it is smaller than the sum of its proper divisors (183641481623808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51150528000000 is an frugal number, since it uses more digits than its factorization.

51150528000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The spelling of 51150528000000 in words is "fifty-one trillion, one hundred fifty billion, five hundred twenty-eight million", and thus it is an aban number.