56680406 has 4 divisors (see below), whose sum is σ = 85020612. Its totient is φ = 28340202.

The previous prime is 56680391. The next prime is 56680427. The reversal of 56680406 is 60408665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60408665 = 5 ⋅12081733.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14170100 + ... + 14170103.

It is an arithmetic number, because the mean of its divisors is an integer number (21255153).

Almost surely, 2^56680406 is an apocalyptic number.

56680406 is a deficient number, since it is larger than the sum of its proper divisors (28340206).

56680406 is a wasteful number, since it uses less digits than its factorization.

56680406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28340205.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 56680406 is about 7528.6390536404. The cubic root of 56680406 is about 384.1294910147.

The spelling of 56680406 in words is "fifty-six million, six hundred eighty thousand, four hundred six".