55572726 has 32 divisors (see below), whose sum is σ = 123545088. Its totient is φ = 16521440.

The previous prime is 55572721. The next prime is 55572763. The reversal of 55572726 is 62727555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55572721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4446 + ... + 11441.

It is an arithmetic number, because the mean of its divisors is an integer number (3860784).

Almost surely, 2^55572726 is an apocalyptic number.

55572726 is an abundant number, since it is smaller than the sum of its proper divisors (67972362).

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

55572726 is a wasteful number, since it uses less digits than its factorization.

55572726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15956.

The product of its digits is 147000, while the sum is 39.

The square root of 55572726 is about 7454.7116644442. The cubic root of 55572726 is about 381.6107206399.

The spelling of 55572726 in words is "fifty-five million, five hundred seventy-two thousand, seven hundred twenty-six".