55512297 has 10 divisors (see below), whose sum is σ = 82925898. Its totient is φ = 37008144.

The previous prime is 55512287. The next prime is 55512299. The reversal of 55512297 is 79221555.

55512297 is a `hidden beast` number, since 55 + 512 + 2 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 43877376 + 11634921 = 6624^2 + 3411^2 .

It is not a de Polignac number, because 55512297 - 2¹⁶ = 55446761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55512299) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 342588 + ... + 342749.

Almost surely, 2^55512297 is an apocalyptic number.

It is an amenable number.

55512297 is a deficient number, since it is larger than the sum of its proper divisors (27413601).

55512297 is an equidigital number, since it uses as much as digits as its factorization.

55512297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685349 (or 685340 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 55512297 is about 7450.6574877658. The cubic root of 55512297 is about 381.4723510987.

The spelling of 55512297 in words is "fifty-five million, five hundred twelve thousand, two hundred ninety-seven".