55722726 has 12 divisors (see below), whose sum is σ = 120732612. Its totient is φ = 18574236.

The previous prime is 55722701. The next prime is 55722743. The reversal of 55722726 is 62722755.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1547836 + ... + 1547871.

It is an arithmetic number, because the mean of its divisors is an integer number (10061051).

Almost surely, 2^55722726 is an apocalyptic number.

55722726 is an abundant number, since it is smaller than the sum of its proper divisors (65009886).

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

55722726 is a wasteful number, since it uses less digits than its factorization.

55722726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095715 (or 3095712 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 55722726 is about 7464.7656359728. The cubic root of 55722726 is about 381.9537557206.

The spelling of 55722726 in words is "fifty-five million, seven hundred twenty-two thousand, seven hundred twenty-six".