15012855 has 48 divisors (see below), whose sum is σ = 30584736. Its totient is φ = 6716160.

The previous prime is 15012839. The next prime is 15012857. The reversal of 15012855 is 55821051.

It is not a de Polignac number, because 15012855 - 2⁴ = 15012839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15012857) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5269 + ... + 7601.

It is an arithmetic number, because the mean of its divisors is an integer number (637182).

Almost surely, 2^15012855 is an apocalyptic number.

15012855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15012855 is an abundant number, since it is smaller than the sum of its proper divisors (15571881).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15012855 is a wasteful number, since it uses less digits than its factorization.

15012855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368 (or 2365 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 15012855 is about 3874.6425641600. The cubic root of 15012855 is about 246.6916387752.

It can be divided in two parts, 1501 and 2855, that added together give a square (4356 = 66²).

The spelling of 15012855 in words is "fifteen million, twelve thousand, eight hundred fifty-five".