55727726 has 4 divisors (see below), whose sum is σ = 83591592. Its totient is φ = 27863862.

The previous prime is 55727681. The next prime is 55727729. The reversal of 55727726 is 62772755.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55727729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13931930 + ... + 13931933.

It is an arithmetic number, because the mean of its divisors is an integer number (20897898).

Almost surely, 2^55727726 is an apocalyptic number.

55727726 is a deficient number, since it is larger than the sum of its proper divisors (27863866).

55727726 is a wasteful number, since it uses less digits than its factorization.

55727726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27863865.

The product of its digits is 205800, while the sum is 41.

The square root of 55727726 is about 7465.1005351569. The cubic root of 55727726 is about 381.9651796153.

The spelling of 55727726 in words is "fifty-five million, seven hundred twenty-seven thousand, seven hundred twenty-six".