55428508 has 18 divisors (see below), whose sum is σ = 97774544. Its totient is φ = 27494544.

The previous prime is 55428487. The next prime is 55428521. The reversal of 55428508 is 80582455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119485 + ... + 119947.

Almost surely, 2^55428508 is an apocalyptic number.

It is an amenable number.

55428508 is a deficient number, since it is larger than the sum of its proper divisors (42346036).

55428508 is a wasteful number, since it uses less digits than its factorization.

55428508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 638 counting only the distinct ones).

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

The square root of 55428508 is about 7445.0324378071. The cubic root of 55428508 is about 381.2803258866.

The spelling of 55428508 in words is "fifty-five million, four hundred twenty-eight thousand, five hundred eight".