55669416 has 32 divisors (see below), whose sum is σ = 151826400. Its totient is φ = 16869440.

The previous prime is 55669409. The next prime is 55669417. The reversal of 55669416 is 61496655.

It is not an unprimeable number, because it can be changed into a prime (55669417) 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, 105171 + ... + 105698.

It is an arithmetic number, because the mean of its divisors is an integer number (4744575).

Almost surely, 2^55669416 is an apocalyptic number.

It is an amenable number.

55669416 is an abundant number, since it is smaller than the sum of its proper divisors (96156984).

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

55669416 is a wasteful number, since it uses less digits than its factorization.

55669416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210889 (or 210885 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 55669416 is about 7461.1940063237. The cubic root of 55669416 is about 381.8319116481.

The spelling of 55669416 in words is "fifty-five million, six hundred sixty-nine thousand, four hundred sixteen".