15000825 has 24 divisors (see below), whose sum is σ = 28345408. Its totient is φ = 6857280.

The previous prime is 15000781. The next prime is 15000829. The reversal of 15000825 is 52800051.

It is not a de Polignac number, because 15000825 - 2¹³ = 14992633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (15000829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13762 + ... + 14811.

Almost surely, 2^15000825 is an apocalyptic number.

15000825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15000825 is a deficient number, since it is larger than the sum of its proper divisors (13344583).

15000825 is a wasteful number, since it uses less digits than its factorization.

15000825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28593 (or 28588 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 15000825 is about 3873.0898517850. The cubic root of 15000825 is about 246.6257287390.

Adding to 15000825 its reverse (52800051), we get a palindrome (67800876).

The spelling of 15000825 in words is "fifteen million, eight hundred twenty-five", and thus it is an aban number.