56770655 has 4 divisors (see below), whose sum is σ = 68124792. Its totient is φ = 45416520.

The previous prime is 56770643. The next prime is 56770673. The reversal of 56770655 is 55607765.

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

It is not a de Polignac number, because 56770655 - 2⁶ = 56770591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5677061 + ... + 5677070.

It is an arithmetic number, because the mean of its divisors is an integer number (17031198).

Almost surely, 2^56770655 is an apocalyptic number.

56770655 is a deficient number, since it is larger than the sum of its proper divisors (11354137).

56770655 is a wasteful number, since it uses less digits than its factorization.

56770655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11354136.

The product of its (nonzero) digits is 220500, while the sum is 41.

The square root of 56770655 is about 7534.6303824408. The cubic root of 56770655 is about 384.3332587806. Note that the first 3 decimals are identical.

The spelling of 56770655 in words is "fifty-six million, seven hundred seventy thousand, six hundred fifty-five".