525471400100856 has 128 divisors (see below), whose sum is σ = 1468347910444800. Its totient is φ = 155319283584000.

The previous prime is 525471400100749. The next prime is 525471400100869. The reversal of 525471400100856 is 658001004174525.

It is a happy number.

It is a super-2 number, since 2×525471400100856² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49960546 + ... + 59556686.

It is an arithmetic number, because the mean of its divisors is an integer number (11471468050350).

Almost surely, 2^{525471400100856} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525471400100856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734173955222400).

525471400100856 is an abundant number, since it is smaller than the sum of its proper divisors (942876510343944).

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

525471400100856 is a wasteful number, since it uses less digits than its factorization.

525471400100856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9601261 (or 9601257 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 48.

The spelling of 525471400100856 in words is "five hundred twenty-five trillion, four hundred seventy-one billion, four hundred million, one hundred thousand, eight hundred fifty-six".