56701070521 has 16 divisors (see below), whose sum is σ = 60195598848. Its totient is φ = 53323603200.

The previous prime is 56701070501. The next prime is 56701070527. The reversal of 56701070521 is 12507010765.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56701070521 is a prime.

It is a super-2 number, since 2×56701070521² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56701070527) 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, 154641 + ... + 370561.

It is an arithmetic number, because the mean of its divisors is an integer number (3762224928).

Almost surely, 2^56701070521 is an apocalyptic number.

It is an amenable number.

56701070521 is a deficient number, since it is larger than the sum of its proper divisors (3494528327).

56701070521 is a wasteful number, since it uses less digits than its factorization.

56701070521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216192.

The product of its (nonzero) digits is 14700, while the sum is 34.

The spelling of 56701070521 in words is "fifty-six billion, seven hundred one million, seventy thousand, five hundred twenty-one".