55513752 has 32 divisors (see below), whose sum is σ = 158611200. Its totient is φ = 15861024.

The previous prime is 55513723. The next prime is 55513753. The reversal of 55513752 is 25731555.

It is a super-2 number, since 2×55513752² = 6163553322235008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55513753) 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, 165052 + ... + 165387.

It is an arithmetic number, because the mean of its divisors is an integer number (4956600).

Almost surely, 2^55513752 is an apocalyptic number.

It is an amenable number.

55513752 is an abundant number, since it is smaller than the sum of its proper divisors (103097448).

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

55513752 is a wasteful number, since it uses less digits than its factorization.

55513752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330455 (or 330451 counting only the distinct ones).

The product of its digits is 26250, while the sum is 33.

The square root of 55513752 is about 7450.7551295154. The cubic root of 55513752 is about 381.4756839184.

It can be divided in two parts, 55513 and 752, that added together give a palindrome (56265).

The spelling of 55513752 in words is "fifty-five million, five hundred thirteen thousand, seven hundred fifty-two".