56263689 has 6 divisors (see below), whose sum is σ = 81269786. Its totient is φ = 37509120.

The previous prime is 56263679. The next prime is 56263699. The reversal of 56263689 is 98636265.

It is a happy number.

56263689 is a `hidden beast` number, since 5 + 6 + 2 + 636 + 8 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (56263679) and next prime (56263699).

It can be written as a sum of positive squares in only one way, i.e., 56250000 + 13689 = 7500^2 + 117^2 .

It is not a de Polignac number, because 56263689 - 2⁴ = 56263673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56263609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3125752 + ... + 3125769.

Almost surely, 2^56263689 is an apocalyptic number.

It is an amenable number.

56263689 is a deficient number, since it is larger than the sum of its proper divisors (25006097).

56263689 is a wasteful number, since it uses less digits than its factorization.

56263689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6251527 (or 6251524 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 56263689 is about 7500.9125444842. The cubic root of 56263689 is about 383.1857951864.

The spelling of 56263689 in words is "fifty-six million, two hundred sixty-three thousand, six hundred eighty-nine".