55645694 has 16 divisors (see below), whose sum is σ = 93798432. Its totient is φ = 24565728.

The previous prime is 55645679. The next prime is 55645721. The reversal of 55645694 is 49654655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45929 + ... + 47124.

It is an arithmetic number, because the mean of its divisors is an integer number (5862402).

Almost surely, 2^55645694 is an apocalyptic number.

55645694 is a deficient number, since it is larger than the sum of its proper divisors (38152738).

55645694 is a wasteful number, since it uses less digits than its factorization.

55645694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93091.

The product of its digits is 648000, while the sum is 44.

The square root of 55645694 is about 7459.6041449932. The cubic root of 55645694 is about 381.7776681984. Note that the first 3 decimals are identical.

The spelling of 55645694 in words is "fifty-five million, six hundred forty-five thousand, six hundred ninety-four".