55361253 has 32 divisors (see below), whose sum is σ = 80695296. Its totient is φ = 33663168.

The previous prime is 55361239. The next prime is 55361263. The reversal of 55361253 is 35216355.

It is not a de Polignac number, because 55361253 - 2⁸ = 55360997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55361253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55361233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139251 + ... + 139647.

It is an arithmetic number, because the mean of its divisors is an integer number (2521728).

Almost surely, 2^55361253 is an apocalyptic number.

It is an amenable number.

55361253 is a deficient number, since it is larger than the sum of its proper divisors (25334043).

55361253 is a wasteful number, since it uses less digits than its factorization.

55361253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

The product of its digits is 13500, while the sum is 30.

The square root of 55361253 is about 7440.5142967405. The cubic root of 55361253 is about 381.1260527656.

It can be divided in two parts, 5536125 and 3, that added together give a triangular number (5536128 = T₃₃₂₇).

The spelling of 55361253 in words is "fifty-five million, three hundred sixty-one thousand, two hundred fifty-three".