56687250449 has 16 divisors (see below), whose sum is σ = 59511414144. Its totient is φ = 53893382400.

The previous prime is 56687250427. The next prime is 56687250467. The reversal of 56687250449 is 94405278665.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56687250449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56687250394 and 56687250403.

It is not an unprimeable number, because it can be changed into a prime (56687250419) 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, 12990542 + ... + 12994904.

It is an arithmetic number, because the mean of its divisors is an integer number (3719463384).

Almost surely, 2^56687250449 is an apocalyptic number.

It is an amenable number.

56687250449 is a deficient number, since it is larger than the sum of its proper divisors (2824163695).

56687250449 is a wasteful number, since it uses less digits than its factorization.

56687250449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7688.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 56687250449 in words is "fifty-six billion, six hundred eighty-seven million, two hundred fifty thousand, four hundred forty-nine".