55644475 has 48 divisors (see below), whose sum is σ = 77137920. Its totient is φ = 39670400.

The previous prime is 55644467. The next prime is 55644487. The reversal of 55644475 is 57444655.

It is a happy number.

It is not a de Polignac number, because 55644475 - 2³ = 55644467 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (336000) is a multiple of the sum of its prime divisors (175).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 783690 + ... + 783760.

It is an arithmetic number, because the mean of its divisors is an integer number (1607040).

Almost surely, 2^55644475 is an apocalyptic number.

55644475 is a deficient number, since it is larger than the sum of its proper divisors (21493445).

55644475 is a wasteful number, since it uses less digits than its factorization.

55644475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 175 counting only the distinct ones).

The product of its digits is 336000, while the sum is 40.

The square root of 55644475 is about 7459.5224377972. The cubic root of 55644475 is about 381.7748803794.

The spelling of 55644475 in words is "fifty-five million, six hundred forty-four thousand, four hundred seventy-five".