55543253 has 4 divisors (see below), whose sum is σ = 57044460. Its totient is φ = 54042048.

The previous prime is 55543247. The next prime is 55543259. The reversal of 55543253 is 35234555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35234555 = 5 ⋅7046911.

It is an interprime number because it is at equal distance from previous prime (55543247) and next prime (55543259).

It can be written as a sum of positive squares in 2 ways, for example, as 51940849 + 3602404 = 7207^2 + 1898^2 .

It is a cyclic number.

It is not a de Polignac number, because 55543253 - 2⁸ = 55542997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55543259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750548 + ... + 750621.

It is an arithmetic number, because the mean of its divisors is an integer number (14261115).

Almost surely, 2^55543253 is an apocalyptic number.

It is an amenable number.

55543253 is a deficient number, since it is larger than the sum of its proper divisors (1501207).

55543253 is a wasteful number, since it uses less digits than its factorization.

55543253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501206.

The product of its digits is 45000, while the sum is 32.

The square root of 55543253 is about 7452.7345987899. The cubic root of 55543253 is about 381.5432462840.

The spelling of 55543253 in words is "fifty-five million, five hundred forty-three thousand, two hundred fifty-three".