51522141004000 has 192 divisors, whose sum is σ = 129001609376640. Its totient is φ = 20216369971200.

The previous prime is 51522141003959. The next prime is 51522141004007. The reversal of 51522141004000 is 40014122515.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51522141004007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1384129389 + ... + 1384166611.

It is an arithmetic number, because the mean of its divisors is an integer number (671883382170).

Almost surely, 2^{51522141004000} is an apocalyptic number.

51522141004000 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 51522141004000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64500804688320).

51522141004000 is an abundant number, since it is smaller than the sum of its proper divisors (77479468372640).

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

51522141004000 is a wasteful number, since it uses less digits than its factorization.

51522141004000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43830 (or 43812 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 51522141004000 its reverse (40014122515), we get a palindrome (51562155126515).

The spelling of 51522141004000 in words is "fifty-one trillion, five hundred twenty-two billion, one hundred forty-one million, four thousand".