55645266 has 16 divisors (see below), whose sum is σ = 111975264. Its totient is φ = 18434304.

The previous prime is 55645253. The next prime is 55645273. The reversal of 55645266 is 66254655.

It is a happy 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, 27471 + ... + 29426.

It is an arithmetic number, because the mean of its divisors is an integer number (6998454).

Almost surely, 2^55645266 is an apocalyptic number.

55645266 is an abundant number, since it is smaller than the sum of its proper divisors (56329998).

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

55645266 is a wasteful number, since it uses less digits than its factorization.

55645266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57065.

The product of its digits is 216000, while the sum is 39.

The square root of 55645266 is about 7459.5754570887. The cubic root of 55645266 is about 381.7766893790.

The spelling of 55645266 in words is "fifty-five million, six hundred forty-five thousand, two hundred sixty-six".