25260516 has 18 divisors (see below), whose sum is σ = 63853062. Its totient is φ = 8420160.

The previous prime is 25260503. The next prime is 25260517. The reversal of 25260516 is 61506252.

25260516 is a `hidden beast` number, since 2 + 52 + 605 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22127616 + 3132900 = 4704^2 + 1770^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 25260516.

It is not an unprimeable number, because it can be changed into a prime (25260517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 350805 + ... + 350876.

Almost surely, 2^25260516 is an apocalyptic number.

It is an amenable number.

25260516 is an abundant number, since it is smaller than the sum of its proper divisors (38592546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25260516 is a wasteful number, since it uses less digits than its factorization.

25260516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701691 (or 701686 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 25260516 is about 5025.9840827444. The cubic root of 25260516 is about 293.4139373303.

Adding to 25260516 its reverse (61506252), we get a palindrome (86766768).

The spelling of 25260516 in words is "twenty-five million, two hundred sixty thousand, five hundred sixteen".