55069916 has 24 divisors (see below), whose sum is σ = 105409920. Its totient is φ = 24966000.

The previous prime is 55069909. The next prime is 55069933. The reversal of 55069916 is 61996055.

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, 17891 + ... + 20741.

It is an arithmetic number, because the mean of its divisors is an integer number (4392080).

Almost surely, 2^55069916 is an apocalyptic number.

It is an amenable number.

55069916 is a deficient number, since it is larger than the sum of its proper divisors (50340004).

55069916 is a wasteful number, since it uses less digits than its factorization.

55069916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305 (or 3303 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 55069916 is about 7420.9107257802. The cubic root of 55069916 is about 380.4563216146.

The spelling of 55069916 in words is "fifty-five million, sixty-nine thousand, nine hundred sixteen".