55131363 has 24 divisors (see below), whose sum is σ = 91260000. Its totient is φ = 31417344.

The previous prime is 55131359. The next prime is 55131379. The reversal of 55131363 is 36313155.

It is not a de Polignac number, because 55131363 - 2² = 55131359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55131313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27313 + ... + 29261.

It is an arithmetic number, because the mean of its divisors is an integer number (3802500).

Almost surely, 2^55131363 is an apocalyptic number.

55131363 is a deficient number, since it is larger than the sum of its proper divisors (36128637).

55131363 is a wasteful number, since it uses less digits than its factorization.

55131363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2408 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 55131363 is about 7425.0496968034. The cubic root of 55131363 is about 380.5977733766.

The spelling of 55131363 in words is "fifty-five million, one hundred thirty-one thousand, three hundred sixty-three".