15252315 has 64 divisors (see below), whose sum is σ = 28740096. Its totient is φ = 6838272.

The previous prime is 15252311. The next prime is 15252317. The reversal of 15252315 is 51325251.

It is a happy number.

It is not a de Polignac number, because 15252315 - 2² = 15252311 is a prime.

It is a super-2 number, since 2×15252315² = 465266225718450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15252311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142492 + ... + 142598.

It is an arithmetic number, because the mean of its divisors is an integer number (449064).

Almost surely, 2^15252315 is an apocalyptic number.

15252315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15252315 is a deficient number, since it is larger than the sum of its proper divisors (13487781).

15252315 is a wasteful number, since it uses less digits than its factorization.

15252315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its digits is 1500, while the sum is 24.

The square root of 15252315 is about 3905.4212320824. The cubic root of 15252315 is about 247.9963308077.

Adding to 15252315 its reverse (51325251), we get a palindrome (66577566).

The spelling of 15252315 in words is "fifteen million, two hundred fifty-two thousand, three hundred fifteen".