55625255 has 32 divisors (see below), whose sum is σ = 80870400. Its totient is φ = 35880192.

The previous prime is 55625239. The next prime is 55625279. The reversal of 55625255 is 55252655.

It is a cyclic number.

It is not a de Polignac number, because 55625255 - 2⁴ = 55625239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154766 + ... + 155124.

It is an arithmetic number, because the mean of its divisors is an integer number (2527200).

Almost surely, 2^55625255 is an apocalyptic number.

55625255 is a deficient number, since it is larger than the sum of its proper divisors (25245145).

55625255 is a wasteful number, since it uses less digits than its factorization.

55625255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623.

The product of its digits is 75000, while the sum is 35.

The square root of 55625255 is about 7458.2340403074. The cubic root of 55625255 is about 381.7309193920.

The spelling of 55625255 in words is "fifty-five million, six hundred twenty-five thousand, two hundred fifty-five".