56200555621520 has 80 divisors (see below), whose sum is σ = 145634257203840. Its totient is φ = 20044284844032.

The previous prime is 56200555621489. The next prime is 56200555621523. The reversal of 56200555621520 is 2512655500265.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×56200555621520² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56200555621523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1087446212 + ... + 1087497891.

It is an arithmetic number, because the mean of its divisors is an integer number (1820428215048).

Almost surely, 2^{56200555621520} is an apocalyptic number.

It is an amenable number.

56200555621520 is an abundant number, since it is smaller than the sum of its proper divisors (89433701582320).

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

56200555621520 is a wasteful number, since it uses less digits than its factorization.

56200555621520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174944152 (or 2174944146 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 56200555621520 in words is "fifty-six trillion, two hundred billion, five hundred fifty-five million, six hundred twenty-one thousand, five hundred twenty".