55969572 has 12 divisors (see below), whose sum is σ = 130595696. Its totient is φ = 18656520.

The previous prime is 55969561. The next prime is 55969597. The reversal of 55969572 is 27596955.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2332054 + ... + 2332077.

Almost surely, 2^55969572 is an apocalyptic number.

It is an amenable number.

55969572 is an abundant number, since it is smaller than the sum of its proper divisors (74626124).

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

55969572 is a wasteful number, since it uses less digits than its factorization.

55969572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664138 (or 4664136 counting only the distinct ones).

The product of its digits is 850500, while the sum is 48.

The square root of 55969572 is about 7481.2814410367. The cubic root of 55969572 is about 382.5169303455.

The spelling of 55969572 in words is "fifty-five million, nine hundred sixty-nine thousand, five hundred seventy-two".