55727715 has 16 divisors (see below), whose sum is σ = 89258400. Its totient is φ = 29690112.

The previous prime is 55727681. The next prime is 55727729. The reversal of 55727715 is 51772755.

55727715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55727715 - 2¹¹ = 55725667 is a prime.

It is a super-3 number, since 3×55727715³ (a number of 24 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 22981 + ... + 25289.

It is an arithmetic number, because the mean of its divisors is an integer number (5578650).

Almost surely, 2^55727715 is an apocalyptic number.

55727715 is a deficient number, since it is larger than the sum of its proper divisors (33530685).

55727715 is a wasteful number, since it uses less digits than its factorization.

55727715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926.

The product of its digits is 85750, while the sum is 39.

The square root of 55727715 is about 7465.0997983952. The cubic root of 55727715 is about 381.9651544835.

The spelling of 55727715 in words is "fifty-five million, seven hundred twenty-seven thousand, seven hundred fifteen".