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BaseRepresentation
bin111111100011100…
…0011011100000000
312111121210001012210
41333013003130000
513331413234040
6551340022120
7103563265014
oct17707033400
95447701183
102132555520
119a4854587
124b6231940
1327ca79094
14163322544
15c7348480
hex7f1c3700

2132555520 has 144 divisors (see below), whose sum is σ = 6893937792. Its totient is φ = 561745920.

The previous prime is 2132555507. The next prime is 2132555527. The reversal of 2132555520 is 255552312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132555527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315375 + ... + 322065.

It is an arithmetic number, because the mean of its divisors is an integer number (47874568).

Almost surely, 22132555520 is an apocalyptic number.

2132555520 is a gapful number since it is divisible by the number (20) 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 2132555520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3446968896).

2132555520 is an abundant number, since it is smaller than the sum of its proper divisors (4761382272).

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

2132555520 is an equidigital number, since it uses as much as digits as its factorization.

2132555520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798 (or 6784 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 2132555520 is about 46179.6006912143. The cubic root of 2132555520 is about 1287.1627082652.

The spelling of 2132555520 in words is "two billion, one hundred thirty-two million, five hundred fifty-five thousand, five hundred twenty".