55427964 has 24 divisors (see below), whose sum is σ = 129615360. Its totient is φ = 18435504.

The previous prime is 55427947. The next prime is 55428001. The reversal of 55427964 is 46972455.

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, 927 + ... + 10569.

It is an arithmetic number, because the mean of its divisors is an integer number (5400640).

Almost surely, 2^55427964 is an apocalyptic number.

It is an amenable number.

55427964 is an abundant number, since it is smaller than the sum of its proper divisors (74187396).

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

55427964 is a wasteful number, since it uses less digits than its factorization.

55427964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10129 (or 10127 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 55427964 is about 7444.9959032897. The cubic root of 55427964 is about 381.2790785310.

The spelling of 55427964 in words is "fifty-five million, four hundred twenty-seven thousand, nine hundred sixty-four".