55397295 has 12 divisors (see below), whose sum is σ = 96022056. Its totient is φ = 29545200.

The previous prime is 55397267. The next prime is 55397297. The reversal of 55397295 is 59279355.

55397295 is a `hidden beast` number, since 553 + 9 + 7 + 2 + 95 = 666.

It is not a de Polignac number, because 55397295 - 2⁵ = 55397263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1231051 = 55397295 / (5 + 5 + 3 + 9 + 7 + 2 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 55397295.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55397297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615481 + ... + 615570.

It is an arithmetic number, because the mean of its divisors is an integer number (8001838).

Almost surely, 2^55397295 is an apocalyptic number.

55397295 is a deficient number, since it is larger than the sum of its proper divisors (40624761).

55397295 is a wasteful number, since it uses less digits than its factorization.

55397295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231062 (or 1231059 counting only the distinct ones).

The product of its digits is 425250, while the sum is 45.

The square root of 55397295 is about 7442.9359126624. The cubic root of 55397295 is about 381.2087433633.

The spelling of 55397295 in words is "fifty-five million, three hundred ninety-seven thousand, two hundred ninety-five".