56699406 has 32 divisors (see below), whose sum is σ = 127603200. Its totient is φ = 18659160.

The previous prime is 56699389. The next prime is 56699431. The reversal of 56699406 is 60499665.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2380 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (3987600).

Almost surely, 2^56699406 is an apocalyptic number.

56699406 is an abundant number, since it is smaller than the sum of its proper divisors (70903794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56699406 is a wasteful number, since it uses less digits than its factorization.

56699406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13381 (or 13375 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 56699406 is about 7529.9007961593. The cubic root of 56699406 is about 384.1724079324.

The spelling of 56699406 in words is "fifty-six million, six hundred ninety-nine thousand, four hundred six".