56249134561 has 5 divisors (see below), whose sum is σ = 56364873521. Its totient is φ = 56133633258.

The previous prime is 56249134511. The next prime is 56249134577. The reversal of 56249134561 is 16543194265.

The square root of 56249134561 is 237169.

It is a perfect power (a square, a biquadrate), and thus also a powerful number.

It is not a de Polignac number, because 56249134561 - 2²⁵ = 56215580129 is a prime.

It is a super-2 number, since 2×56249134561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56249134511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 115501060 + ... + 115501546.

Almost surely, 2^56249134561 is an apocalyptic number.

56249134561 is the 237169-th square number.

56249134561 is the 118585-th centered octagonal number.

It is an amenable number.

56249134561 is a deficient number, since it is larger than the sum of its proper divisors (115738960).

56249134561 is an frugal number, since it uses more digits than its factorization.

56249134561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948 (or 487 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The spelling of 56249134561 in words is "fifty-six billion, two hundred forty-nine million, one hundred thirty-four thousand, five hundred sixty-one".