525256003656 has 192 divisors, whose sum is σ = 1505540836800. Its totient is φ = 164975616000.

The previous prime is 525256003639. The next prime is 525256003697. The reversal of 525256003656 is 656300652525.

525256003656 is a `hidden beast` number, since 5 + 2 + 5 + 2 + 5 + 600 + 36 + 5 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252404536 + ... + 252406616.

It is an arithmetic number, because the mean of its divisors is an integer number (7841358525).

Almost surely, 2^525256003656 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 525256003656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752770418400).

525256003656 is an abundant number, since it is smaller than the sum of its proper divisors (980284833144).

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

525256003656 is a wasteful number, since it uses less digits than its factorization.

525256003656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020 (or 3013 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 525256003656 in words is "five hundred twenty-five billion, two hundred fifty-six million, three thousand, six hundred fifty-six".