25512601 has 3 divisors (see below), whose sum is σ = 25517653. Its totient is φ = 25507550.

The previous prime is 25512593. The next prime is 25512637. The reversal of 25512601 is 10621552.

The square root of 25512601 is 5051.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 25512601 - 2³ = 25512593 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25512671) 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 2 ways as a sum of consecutive naturals, for example, 2526 + ... + 7576.

Almost surely, 2^25512601 is an apocalyptic number.

25512601 is the 5051-st square number.

25512601 is the 2526-th centered octagonal number.

It is an amenable number.

25512601 is a deficient number, since it is larger than the sum of its proper divisors (5052).

25512601 is an frugal number, since it uses more digits than its factorization.

25512601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102 (or 5051 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The cubic root of 25512601 is about 294.3867409516.

The spelling of 25512601 in words is "twenty-five million, five hundred twelve thousand, six hundred one".