55406256 has 20 divisors (see below), whose sum is σ = 143132952. Its totient is φ = 18468736.

The previous prime is 55406249. The next prime is 55406257. The reversal of 55406256 is 65260455.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55406257) 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, 577101 + ... + 577196.

Almost surely, 2^55406256 is an apocalyptic number.

It is an amenable number.

55406256 is an abundant number, since it is smaller than the sum of its proper divisors (87726696).

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

55406256 is a wasteful number, since it uses less digits than its factorization.

55406256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154308 (or 1154302 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 55406256 is about 7443.5378685139. The cubic root of 55406256 is about 381.2292968781.

The spelling of 55406256 in words is "fifty-five million, four hundred six thousand, two hundred fifty-six".