55253565 has 24 divisors (see below), whose sum is σ = 96729048. Its totient is φ = 29174400.

The previous prime is 55253551. The next prime is 55253593. The reversal of 55253565 is 56535255.

55253565 is a `hidden beast` number, since 552 + 53 + 56 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5846724 + 49406841 = 2418^2 + 7029^2 .

It is not a de Polignac number, because 55253565 - 2⁷ = 55253437 is a prime.

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, 1534 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (4030377).

Almost surely, 2^55253565 is an apocalyptic number.

It is an amenable number.

55253565 is a deficient number, since it is larger than the sum of its proper divisors (41475483).

55253565 is a wasteful number, since it uses less digits than its factorization.

55253565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12269 (or 12266 counting only the distinct ones).

The product of its digits is 112500, while the sum is 36.

The square root of 55253565 is about 7433.2741776420. The cubic root of 55253565 is about 380.8787718555.

The spelling of 55253565 in words is "fifty-five million, two hundred fifty-three thousand, five hundred sixty-five".