55242355 has 12 divisors (see below), whose sum is σ = 77114160. Its totient is φ = 37880304.

The previous prime is 55242347. The next prime is 55242359. The reversal of 55242355 is 55324255.

It is a happy number.

It is not a de Polignac number, because 55242355 - 2³ = 55242347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55242359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112495 + ... + 112984.

It is an arithmetic number, because the mean of its divisors is an integer number (6426180).

Almost surely, 2^55242355 is an apocalyptic number.

55242355 is a deficient number, since it is larger than the sum of its proper divisors (21871805).

55242355 is a wasteful number, since it uses less digits than its factorization.

55242355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225498 (or 225491 counting only the distinct ones).

The product of its digits is 30000, while the sum is 31.

The square root of 55242355 is about 7432.5200975174. The cubic root of 55242355 is about 380.8530121915.

The spelling of 55242355 in words is "fifty-five million, two hundred forty-two thousand, three hundred fifty-five".