55251592 has 16 divisors (see below), whose sum is σ = 113014800. Its totient is φ = 25114320.

The previous prime is 55251577. The next prime is 55251593. The reversal of 55251592 is 29515255.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55251593) 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, 313842 + ... + 314017.

It is an arithmetic number, because the mean of its divisors is an integer number (7063425).

Almost surely, 2^55251592 is an apocalyptic number.

It is an amenable number.

55251592 is an abundant number, since it is smaller than the sum of its proper divisors (57763208).

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

55251592 is a wasteful number, since it uses less digits than its factorization.

55251592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627876 (or 627872 counting only the distinct ones).

The product of its digits is 22500, while the sum is 34.

The square root of 55251592 is about 7433.1414623966. The cubic root of 55251592 is about 380.8742383154.

It can be divided in two parts, 5525 and 1592, that added together give a palindrome (7117).

The spelling of 55251592 in words is "fifty-five million, two hundred fifty-one thousand, five hundred ninety-two".