56521000465446 has 48 divisors (see below), whose sum is σ = 124258564536624. Its totient is φ = 17126778240000.

The previous prime is 56521000465313. The next prime is 56521000465453. The reversal of 56521000465446 is 64456400012565.

It is a happy number.

It is a super-2 number, since 2×56521000465446² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56521000465395 and 56521000465404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13880266 + ... + 17484386.

It is an arithmetic number, because the mean of its divisors is an integer number (2588720094513).

Almost surely, 2^{56521000465446} is an apocalyptic number.

56521000465446 is an abundant number, since it is smaller than the sum of its proper divisors (67737564071178).

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

56521000465446 is a wasteful number, since it uses less digits than its factorization.

56521000465446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625749 (or 3625738 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 56521000465446 in words is "fifty-six trillion, five hundred twenty-one billion, four hundred sixty-five thousand, four hundred forty-six".