25072215 has 32 divisors (see below), whose sum is σ = 46488576. Its totient is φ = 11301120.

The previous prime is 25072193. The next prime is 25072219. The reversal of 25072215 is 51227052.

It is not a de Polignac number, because 25072215 - 2¹⁰ = 25071191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25072219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6030 + ... + 9300.

It is an arithmetic number, because the mean of its divisors is an integer number (1452768).

Almost surely, 2^25072215 is an apocalyptic number.

25072215 is a deficient number, since it is larger than the sum of its proper divisors (21416361).

25072215 is a wasteful number, since it uses less digits than its factorization.

25072215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 25072215 is about 5007.2162925122. The cubic root of 25072215 is about 292.6830470875.

Adding to 25072215 its reverse (51227052), we get a palindrome (76299267).

The spelling of 25072215 in words is "twenty-five million, seventy-two thousand, two hundred fifteen".