56649975 has 12 divisors (see below), whose sum is σ = 93661416. Its totient is φ = 30213280.

The previous prime is 56649961. The next prime is 56650003. The reversal of 56649975 is 57994665.

It is not a de Polignac number, because 56649975 - 2⁴ = 56649959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377592 + ... + 377741.

It is an arithmetic number, because the mean of its divisors is an integer number (7805118).

Almost surely, 2^56649975 is an apocalyptic number.

56649975 is a deficient number, since it is larger than the sum of its proper divisors (37011441).

56649975 is a wasteful number, since it uses less digits than its factorization.

56649975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755346 (or 755341 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 51.

The square root of 56649975 is about 7526.6177663011. The cubic root of 56649975 is about 384.0607339376.

The spelling of 56649975 in words is "fifty-six million, six hundred forty-nine thousand, nine hundred seventy-five".