55474515 has 24 divisors (see below), whose sum is σ = 98395440. Its totient is φ = 28897344.

The previous prime is 55474493. The next prime is 55474571. The reversal of 55474515 is 51547455.

It is not a de Polignac number, because 55474515 - 2⁸ = 55474259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55474515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12400 + ... + 16269.

It is an arithmetic number, because the mean of its divisors is an integer number (4099810).

Almost surely, 2^55474515 is an apocalyptic number.

55474515 is a deficient number, since it is larger than the sum of its proper divisors (42920925).

55474515 is a wasteful number, since it uses less digits than its factorization.

55474515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28723 (or 28720 counting only the distinct ones).

The product of its digits is 70000, while the sum is 36.

The square root of 55474515 is about 7448.1215752698. The cubic root of 55474515 is about 381.3857873390.

The spelling of 55474515 in words is "fifty-five million, four hundred seventy-four thousand, five hundred fifteen".