55647693 has 6 divisors (see below), whose sum is σ = 80380014. Its totient is φ = 37098456.

The previous prime is 55647653. The next prime is 55647727. The reversal of 55647693 is 39674655.

55647693 is a `hidden beast` number, since 556 + 4 + 7 + 6 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55308969 + 338724 = 7437^2 + 582^2 .

It is not a de Polignac number, because 55647693 - 2⁶ = 55647629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55647653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3091530 + ... + 3091547.

It is an arithmetic number, because the mean of its divisors is an integer number (13396669).

Almost surely, 2^55647693 is an apocalyptic number.

It is an amenable number.

55647693 is a deficient number, since it is larger than the sum of its proper divisors (24732321).

55647693 is a wasteful number, since it uses less digits than its factorization.

55647693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6183083 (or 6183080 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 55647693 is about 7459.7381321331. The cubic root of 55647693 is about 381.7822397676.

The spelling of 55647693 in words is "fifty-five million, six hundred forty-seven thousand, six hundred ninety-three".