55091310 has 32 divisors (see below), whose sum is σ = 132416640. Its totient is φ = 14669088.

The previous prime is 55091297. The next prime is 55091321. The reversal of 55091310 is 1319055.

It is a super-2 number, since 2×55091310² = 6070104875032200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34101 + ... + 35679.

It is an arithmetic number, because the mean of its divisors is an integer number (4138020).

Almost surely, 2^55091310 is an apocalyptic number.

55091310 is an abundant number, since it is smaller than the sum of its proper divisors (77325330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55091310 is a wasteful number, since it uses less digits than its factorization.

55091310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752.

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 55091310 is about 7422.3520530894. The cubic root of 55091310 is about 380.5055828043.

The spelling of 55091310 in words is "fifty-five million, ninety-one thousand, three hundred ten".