15255879 has 8 divisors (see below), whose sum is σ = 21411840. Its totient is φ = 9635256.

The previous prime is 15255859. The next prime is 15255881. The reversal of 15255879 is 97855251.

15255879 is digitally balanced in base 2 and base 4, because in such bases 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 de Polignac number, because none of the positive numbers 2^k-15255879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15255879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15255809) 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, 133767 + ... + 133880.

It is an arithmetic number, because the mean of its divisors is an integer number (2676480).

Almost surely, 2^15255879 is an apocalyptic number.

15255879 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

15255879 is a deficient number, since it is larger than the sum of its proper divisors (6155961).

15255879 is a wasteful number, since it uses less digits than its factorization.

15255879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267669.

The product of its digits is 126000, while the sum is 42.

The square root of 15255879 is about 3905.8774942387. The cubic root of 15255879 is about 248.0156456917.

The spelling of 15255879 in words is "fifteen million, two hundred fifty-five thousand, eight hundred seventy-nine".