25272515 has 8 divisors (see below), whose sum is σ = 31645728. Its totient is φ = 19338880.

The previous prime is 25272497. The next prime is 25272551. The reversal of 25272515 is 51527252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25272515 - 2⁸ = 25272259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109766 + ... + 109995.

It is an arithmetic number, because the mean of its divisors is an integer number (3955716).

Almost surely, 2^25272515 is an apocalyptic number.

25272515 is a deficient number, since it is larger than the sum of its proper divisors (6373213).

25272515 is a wasteful number, since it uses less digits than its factorization.

25272515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219789.

The product of its digits is 7000, while the sum is 29.

The square root of 25272515 is about 5027.1776376014. The cubic root of 25272515 is about 293.4603881698.

Adding to 25272515 its reverse (51527252), we get a palindrome (76799767).

The spelling of 25272515 in words is "twenty-five million, two hundred seventy-two thousand, five hundred fifteen".