56669854 has 16 divisors (see below), whose sum is σ = 87873840. Its totient is φ = 27394560.

The previous prime is 56669849. The next prime is 56669867. The reversal of 56669854 is 45896665.

It is a happy number.

It is a super-2 number, since 2×56669854² = 6422944704762632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56669798 and 56669807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3262 + ... + 11134.

It is an arithmetic number, because the mean of its divisors is an integer number (5492115).

Almost surely, 2^56669854 is an apocalyptic number.

56669854 is a deficient number, since it is larger than the sum of its proper divisors (31203986).

56669854 is a wasteful number, since it uses less digits than its factorization.

56669854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7995.

The product of its digits is 1555200, while the sum is 49.

The square root of 56669854 is about 7527.9382303523. The cubic root of 56669854 is about 384.1056521714.

The spelling of 56669854 in words is "fifty-six million, six hundred sixty-nine thousand, eight hundred fifty-four".