56505874072 has 16 divisors (see below), whose sum is σ = 106201380600. Its totient is φ = 28185505920.

The previous prime is 56505874069. The next prime is 56505874081. The reversal of 56505874072 is 27047850565.

It is a happy number.

It is a super-3 number, since 3×56505874072³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8425329 + ... + 8432032.

Almost surely, 2^56505874072 is an apocalyptic number.

It is an amenable number.

56505874072 is a deficient number, since it is larger than the sum of its proper divisors (49695506528).

56505874072 is a wasteful number, since it uses less digits than its factorization.

56505874072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16857786 (or 16857782 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 56505874072 in words is "fifty-six billion, five hundred five million, eight hundred seventy-four thousand, seventy-two".