55312355 has 16 divisors (see below), whose sum is σ = 79156224. Its totient is φ = 36278880.

The previous prime is 55312351. The next prime is 55312393. The reversal of 55312355 is 55321355.

It is not a de Polignac number, because 55312355 - 2² = 55312351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55312351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33551 + ... + 35160.

It is an arithmetic number, because the mean of its divisors is an integer number (4947264).

Almost surely, 2^55312355 is an apocalyptic number.

55312355 is a deficient number, since it is larger than the sum of its proper divisors (23843869).

55312355 is a wasteful number, since it uses less digits than its factorization.

55312355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68746.

The product of its digits is 11250, while the sum is 29.

The square root of 55312355 is about 7437.2276420720. The cubic root of 55312355 is about 381.0138094530.

The spelling of 55312355 in words is "fifty-five million, three hundred twelve thousand, three hundred fifty-five".