56155706 has 4 divisors (see below), whose sum is σ = 84233562. Its totient is φ = 28077852.

The previous prime is 56155699. The next prime is 56155711. The reversal of 56155706 is 60755165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60755165 = 5 ⋅12151033.

It can be written as a sum of positive squares in only one way, i.e., 50197225 + 5958481 = 7085^2 + 2441^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14038925 + ... + 14038928.

Almost surely, 2^56155706 is an apocalyptic number.

56155706 is a deficient number, since it is larger than the sum of its proper divisors (28077856).

56155706 is a wasteful number, since it uses less digits than its factorization.

56155706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28077855.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 56155706 is about 7493.7110966463. The cubic root of 56155706 is about 382.9404975427.

The spelling of 56155706 in words is "fifty-six million, one hundred fifty-five thousand, seven hundred six".