55617252 has 24 divisors (see below), whose sum is σ = 129909696. Its totient is φ = 18519648.

The previous prime is 55617241. The next prime is 55617259. The reversal of 55617252 is 25271655.

It is not an unprimeable number, because it can be changed into a prime (55617259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13858 + ... + 17414.

It is an arithmetic number, because the mean of its divisors is an integer number (5412904).

Almost surely, 2^55617252 is an apocalyptic number.

It is an amenable number.

55617252 is an abundant number, since it is smaller than the sum of its proper divisors (74292444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55617252 is a wasteful number, since it uses less digits than its factorization.

55617252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4867 (or 4865 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 55617252 is about 7457.6974998990. The cubic root of 55617252 is about 381.7126115264.

The spelling of 55617252 in words is "fifty-five million, six hundred seventeen thousand, two hundred fifty-two".