56705642 has 48 divisors (see below), whose sum is σ = 106117128. Its totient is φ = 22579200.

The previous prime is 56705639. The next prime is 56705657. The reversal of 56705642 is 24650765.

It can be written as a sum of positive squares in 4 ways, for example, as 56415121 + 290521 = 7511^2 + 539^2 .

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 23 ways as a sum of consecutive naturals, for example, 168098 + ... + 168434.

Almost surely, 2^56705642 is an apocalyptic number.

56705642 is a deficient number, since it is larger than the sum of its proper divisors (49411486).

56705642 is a wasteful number, since it uses less digits than its factorization.

56705642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 56705642 is about 7530.3148672549. The cubic root of 56705642 is about 384.1864916268.

The spelling of 56705642 in words is "fifty-six million, seven hundred five thousand, six hundred forty-two".