55252357 has 4 divisors (see below), whose sum is σ = 55873260. Its totient is φ = 54631456.

The previous prime is 55252349. The next prime is 55252381. The reversal of 55252357 is 75325255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37283236 + 17969121 = 6106^2 + 4239^2 .

It is a cyclic number.

It is not a de Polignac number, because 55252357 - 2³ = 55252349 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 (55252157) 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, 310318 + ... + 310495.

It is an arithmetic number, because the mean of its divisors is an integer number (13968315).

Almost surely, 2^55252357 is an apocalyptic number.

It is an amenable number.

55252357 is a deficient number, since it is larger than the sum of its proper divisors (620903).

55252357 is an equidigital number, since it uses as much as digits as its factorization.

55252357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620902.

The product of its digits is 52500, while the sum is 34.

The square root of 55252357 is about 7433.1929209459. The cubic root of 55252357 is about 380.8759961377.

The spelling of 55252357 in words is "fifty-five million, two hundred fifty-two thousand, three hundred fifty-seven".