25268715 has 72 divisors (see below), whose sum is σ = 48849840. Its totient is φ = 12063744.

The previous prime is 25268713. The next prime is 25268717. The reversal of 25268715 is 51786252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25268713) and next prime (25268717).

It is not a de Polignac number, because 25268715 - 2¹ = 25268713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25268715.

It is not an unprimeable number, because it can be changed into a prime (25268713) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 377112 + ... + 377178.

It is an arithmetic number, because the mean of its divisors is an integer number (678470).

Almost surely, 2^25268715 is an apocalyptic number.

25268715 is a deficient number, since it is larger than the sum of its proper divisors (23581125).

25268715 is a wasteful number, since it uses less digits than its factorization.

25268715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 121 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 25268715 is about 5026.7996777274. The cubic root of 25268715 is about 293.4456791026.

The spelling of 25268715 in words is "twenty-five million, two hundred sixty-eight thousand, seven hundred fifteen".