55726747 has 4 divisors (see below), whose sum is σ = 57524416. Its totient is φ = 53929080.

The previous prime is 55726721. The next prime is 55726751. The reversal of 55726747 is 74762755.

55726747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55726747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55726717) by changing a digit.

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, 898788 + ... + 898849.

It is an arithmetic number, because the mean of its divisors is an integer number (14381104).

Almost surely, 2^55726747 is an apocalyptic number.

55726747 is a deficient number, since it is larger than the sum of its proper divisors (1797669).

55726747 is a wasteful number, since it uses less digits than its factorization.

55726747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797668.

The product of its digits is 411600, while the sum is 43.

The square root of 55726747 is about 7465.0349630795. The cubic root of 55726747 is about 381.9629428706.

The spelling of 55726747 in words is "fifty-five million, seven hundred twenty-six thousand, seven hundred forty-seven".