55651612 has 12 divisors (see below), whose sum is σ = 97524280. Its totient is φ = 27787536.

The previous prime is 55651601. The next prime is 55651613. The reversal of 55651612 is 21615655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55651613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6162 + ... + 12217.

Almost surely, 2^55651612 is an apocalyptic number.

It is an amenable number.

55651612 is a deficient number, since it is larger than the sum of its proper divisors (41872668).

55651612 is a wasteful number, since it uses less digits than its factorization.

55651612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19140 (or 19138 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 55651612 is about 7460.0008042895. Note that the first 3 decimals coincide. The cubic root of 55651612 is about 381.7912019210.

The spelling of 55651612 in words is "fifty-five million, six hundred fifty-one thousand, six hundred twelve".