56666234 has 4 divisors (see below), whose sum is σ = 84999354. Its totient is φ = 28333116.

The previous prime is 56666221. The next prime is 56666249. The reversal of 56666234 is 43266665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52606009 + 4060225 = 7253^2 + 2015^2 .

It is a super-2 number, since 2×56666234² = 6422124151485512, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14166557 + ... + 14166560.

Almost surely, 2^56666234 is an apocalyptic number.

56666234 is a deficient number, since it is larger than the sum of its proper divisors (28333120).

56666234 is a wasteful number, since it uses less digits than its factorization.

56666234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28333119.

The product of its digits is 155520, while the sum is 38.

The square root of 56666234 is about 7527.6977888329. The cubic root of 56666234 is about 384.0974732663.

The spelling of 56666234 in words is "fifty-six million, six hundred sixty-six thousand, two hundred thirty-four".