55225886 has 4 divisors (see below), whose sum is σ = 82838832. Its totient is φ = 27612942.

The previous prime is 55225861. The next prime is 55225897. The reversal of 55225886 is 68852255.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13806470 + ... + 13806473.

It is an arithmetic number, because the mean of its divisors is an integer number (20709708).

Almost surely, 2^55225886 is an apocalyptic number.

55225886 is a deficient number, since it is larger than the sum of its proper divisors (27612946).

55225886 is a wasteful number, since it uses less digits than its factorization.

55225886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27612945.

The product of its digits is 192000, while the sum is 41.

The square root of 55225886 is about 7431.4121134546. The cubic root of 55225886 is about 380.8151614538.

The spelling of 55225886 in words is "fifty-five million, two hundred twenty-five thousand, eight hundred eighty-six".