55647285 has 8 divisors (see below), whose sum is σ = 89035680. Its totient is φ = 29678544.

The previous prime is 55647271. The next prime is 55647323. The reversal of 55647285 is 58274655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55647285 - 2²² = 51452981 is a prime.

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, 1854895 + ... + 1854924.

It is an arithmetic number, because the mean of its divisors is an integer number (11129460).

Almost surely, 2^55647285 is an apocalyptic number.

It is an amenable number.

55647285 is a deficient number, since it is larger than the sum of its proper divisors (33388395).

55647285 is a wasteful number, since it uses less digits than its factorization.

55647285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709827.

The product of its digits is 336000, while the sum is 42.

The square root of 55647285 is about 7459.7107852785. The cubic root of 55647285 is about 381.7813067099.

The spelling of 55647285 in words is "fifty-five million, six hundred forty-seven thousand, two hundred eighty-five".