55420588 has 12 divisors (see below), whose sum is σ = 98630280. Its totient is φ = 27240512.

The previous prime is 55420583. The next prime is 55420649. The reversal of 55420588 is 88502455.

It is not an unprimeable number, because it can be changed into a prime (55420583) 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, 117181 + ... + 117652.

It is an arithmetic number, because the mean of its divisors is an integer number (8219190).

Almost surely, 2^55420588 is an apocalyptic number.

It is an amenable number.

55420588 is a deficient number, since it is larger than the sum of its proper divisors (43209692).

55420588 is a wasteful number, since it uses less digits than its factorization.

55420588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234896 (or 234894 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

The square root of 55420588 is about 7444.5005205185. The cubic root of 55420588 is about 381.2621650512.

The spelling of 55420588 in words is "fifty-five million, four hundred twenty thousand, five hundred eighty-eight".