55758552 has 16 divisors (see below), whose sum is σ = 139396440. Its totient is φ = 18586176.

The previous prime is 55758511. The next prime is 55758557. The reversal of 55758552 is 25585755.

It is a super-2 number, since 2×55758552² = 6218032242273408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55758557) 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, 1161613 + ... + 1161660.

Almost surely, 2^55758552 is an apocalyptic number.

It is an amenable number.

55758552 is an abundant number, since it is smaller than the sum of its proper divisors (83637888).

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

55758552 is a wasteful number, since it uses less digits than its factorization.

55758552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323282 (or 2323278 counting only the distinct ones).

The product of its digits is 350000, while the sum is 42.

The square root of 55758552 is about 7467.1649238516. The cubic root of 55758552 is about 382.0355951225.

The spelling of 55758552 in words is "fifty-five million, seven hundred fifty-eight thousand, five hundred fifty-two".