55247592 has 32 divisors (see below), whose sum is σ = 145389600. Its totient is φ = 17446464.

The previous prime is 55247557. The next prime is 55247593. The reversal of 55247592 is 29574255.

It is a self number, because there is not a number n which added to its sum of digits gives 55247592.

It is not an unprimeable number, because it can be changed into a prime (55247593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60123 + ... + 61034.

It is an arithmetic number, because the mean of its divisors is an integer number (4543425).

Almost surely, 2^55247592 is an apocalyptic number.

It is an amenable number.

55247592 is an abundant number, since it is smaller than the sum of its proper divisors (90142008).

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

55247592 is a wasteful number, since it uses less digits than its factorization.

55247592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121185 (or 121181 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 55247592 is about 7432.8723922855. The cubic root of 55247592 is about 380.8650468233.

The spelling of 55247592 in words is "fifty-five million, two hundred forty-seven thousand, five hundred ninety-two".