55726842 has 16 divisors (see below), whose sum is σ = 111837600. Its totient is φ = 18511632.

The previous prime is 55726841. The next prime is 55726859. The reversal of 55726842 is 24862755.

It is a self number, because there is not a number n which added to its sum of digits gives 55726842.

It is not an unprimeable number, because it can be changed into a prime (55726841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14092 + ... + 17607.

It is an arithmetic number, because the mean of its divisors is an integer number (6989850).

Almost surely, 2^55726842 is an apocalyptic number.

55726842 is an abundant number, since it is smaller than the sum of its proper divisors (56110758).

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

55726842 is a wasteful number, since it uses less digits than its factorization.

55726842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31997.

The product of its digits is 134400, while the sum is 39.

The square root of 55726842 is about 7465.0413260745. The cubic root of 55726842 is about 381.9631599205.

The spelling of 55726842 in words is "fifty-five million, seven hundred twenty-six thousand, eight hundred forty-two".