25364520 has 48 divisors (see below), whose sum is σ = 82435860. Its totient is φ = 6763776.

The previous prime is 25364519. The next prime is 25364533. The reversal of 25364520 is 2546352.

It can be written as a sum of positive squares in 2 ways, for example, as 21178404 + 4186116 = 4602^2 + 2046^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34869 + ... + 35588.

Almost surely, 2^25364520 is an apocalyptic number.

25364520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25364520 is an abundant number, since it is smaller than the sum of its proper divisors (57071340).

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

25364520 is a wasteful number, since it uses less digits than its factorization.

25364520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70474 (or 70467 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25364520 is about 5036.3200851415. The cubic root of 25364520 is about 293.8160726580.

It can be divided in two parts, 2536 and 4520, that added together give a square (7056 = 84²).

The spelling of 25364520 in words is "twenty-five million, three hundred sixty-four thousand, five hundred twenty".