55531068 has 24 divisors (see below), whose sum is σ = 132018768. Its totient is φ = 18160896.

The previous prime is 55531051. The next prime is 55531087. The reversal of 55531068 is 86013555.

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, 43021 + ... + 44292.

It is an arithmetic number, because the mean of its divisors is an integer number (5500782).

Almost surely, 2^55531068 is an apocalyptic number.

It is an amenable number.

55531068 is an abundant number, since it is smaller than the sum of its proper divisors (76487700).

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

55531068 is a wasteful number, since it uses less digits than its factorization.

55531068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87373 (or 87371 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 55531068 is about 7451.9170687817. The cubic root of 55531068 is about 381.5153434382.

The spelling of 55531068 in words is "fifty-five million, five hundred thirty-one thousand, sixty-eight".