55393698 has 16 divisors (see below), whose sum is σ = 111408480. Its totient is φ = 18361056.

The previous prime is 55393697. The next prime is 55393711. The reversal of 55393698 is 89639355.

It is not an unprimeable number, because it can be changed into a prime (55393697) 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, 24715 + ... + 26862.

It is an arithmetic number, because the mean of its divisors is an integer number (6963030).

Almost surely, 2^55393698 is an apocalyptic number.

55393698 is an abundant number, since it is smaller than the sum of its proper divisors (56014782).

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

55393698 is a wasteful number, since it uses less digits than its factorization.

55393698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51761.

The product of its digits is 874800, while the sum is 48.

The square root of 55393698 is about 7442.6942702223. The cubic root of 55393698 is about 381.2004924337.

The spelling of 55393698 in words is "fifty-five million, three hundred ninety-three thousand, six hundred ninety-eight".