25052015 has 16 divisors (see below), whose sum is σ = 31072800. Its totient is φ = 19377792.

The previous prime is 25052011. The next prime is 25052039. The reversal of 25052015 is 51025052.

It is a cyclic number.

It is not a de Polignac number, because 25052015 - 2² = 25052011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25052011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22901 + ... + 23969.

It is an arithmetic number, because the mean of its divisors is an integer number (1942050).

Almost surely, 2^25052015 is an apocalyptic number.

25052015 is a deficient number, since it is larger than the sum of its proper divisors (6020785).

25052015 is a wasteful number, since it uses less digits than its factorization.

25052015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 25052015 is about 5005.1987972507. The cubic root of 25052015 is about 292.6044237186.

Adding to 25052015 its reverse (51025052), we get a palindrome (76077067).

The spelling of 25052015 in words is "twenty-five million, fifty-two thousand, fifteen".