55517252 has 24 divisors (see below), whose sum is σ = 114864960. Its totient is φ = 22972320.

The previous prime is 55517237. The next prime is 55517269. The reversal of 55517252 is 25271555.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33374 + ... + 34997.

It is an arithmetic number, because the mean of its divisors is an integer number (4786040).

Almost surely, 2^55517252 is an apocalyptic number.

It is an amenable number.

55517252 is an abundant number, since it is smaller than the sum of its proper divisors (59347708).

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

55517252 is a wasteful number, since it uses less digits than its factorization.

55517252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68411 (or 68409 counting only the distinct ones).

The product of its digits is 17500, while the sum is 32.

The square root of 55517252 is about 7450.9900013354. The cubic root of 55517252 is about 381.4837007718.

The spelling of 55517252 in words is "fifty-five million, five hundred seventeen thousand, two hundred fifty-two".