55491363 has 6 divisors (see below), whose sum is σ = 80154204. Its totient is φ = 36994236.

The previous prime is 55491323. The next prime is 55491391. The reversal of 55491363 is 36319455.

It is not a de Polignac number, because 55491363 - 2¹⁶ = 55425827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55491313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3082845 + ... + 3082862.

It is an arithmetic number, because the mean of its divisors is an integer number (13359034).

Almost surely, 2^55491363 is an apocalyptic number.

55491363 is a deficient number, since it is larger than the sum of its proper divisors (24662841).

55491363 is a wasteful number, since it uses less digits than its factorization.

55491363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6165713 (or 6165710 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 55491363 is about 7449.2525128364. The cubic root of 55491363 is about 381.4243932788.

The spelling of 55491363 in words is "fifty-five million, four hundred ninety-one thousand, three hundred sixty-three".