55247726 has 8 divisors (see below), whose sum is σ = 85729320. Its totient is φ = 26671288.

The previous prime is 55247713. The next prime is 55247737. The reversal of 55247726 is 62774255.

It is a happy number.

55247726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55247726² = 6104622456342152, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55247726.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476216 + ... + 476331.

It is an arithmetic number, because the mean of its divisors is an integer number (10716165).

Almost surely, 2^55247726 is an apocalyptic number.

55247726 is a deficient number, since it is larger than the sum of its proper divisors (30481594).

55247726 is a wasteful number, since it uses less digits than its factorization.

55247726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952578.

The product of its digits is 117600, while the sum is 38.

The square root of 55247726 is about 7432.8814062919. The cubic root of 55247726 is about 380.8653547454.

The spelling of 55247726 in words is "fifty-five million, two hundred forty-seven thousand, seven hundred twenty-six".