55840252 has 24 divisors (see below), whose sum is σ = 108085376. Its totient is φ = 25075008.

The previous prime is 55840231. The next prime is 55840261. The reversal of 55840252 is 25204855.

55840252 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

55840252 is strictly pandigital in base 9.

It is a congruent number.

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, 12588 + ... + 16435.

Almost surely, 2^55840252 is an apocalyptic number.

55840252 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55840252 is a deficient number, since it is larger than the sum of its proper divisors (52245124).

55840252 is a wasteful number, since it uses less digits than its factorization.

55840252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29077 (or 29075 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 55840252 is about 7472.6335384522. The cubic root of 55840252 is about 382.2220961155. Note that the first 3 decimals are identical.

The spelling of 55840252 in words is "fifty-five million, eight hundred forty thousand, two hundred fifty-two".