25251465 has 16 divisors (see below), whose sum is σ = 40782528. Its totient is φ = 13340736.

The previous prime is 25251463. The next prime is 25251467. The reversal of 25251465 is 56415252.

It is an interprime number because it is at equal distance from previous prime (25251463) and next prime (25251467).

It is not a de Polignac number, because 25251465 - 2¹ = 25251463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25251463) 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, 6262 + ... + 9471.

It is an arithmetic number, because the mean of its divisors is an integer number (2548908).

Almost surely, 2^25251465 is an apocalyptic number.

It is an amenable number.

25251465 is a deficient number, since it is larger than the sum of its proper divisors (15531063).

25251465 is a wasteful number, since it uses less digits than its factorization.

25251465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15848.

The product of its digits is 12000, while the sum is 30.

The square root of 25251465 is about 5025.0835813944. The cubic root of 25251465 is about 293.3788891310.

The spelling of 25251465 in words is "twenty-five million, two hundred fifty-one thousand, four hundred sixty-five".