25513651 has 8 divisors (see below), whose sum is σ = 27886464. Its totient is φ = 23237760.

The previous prime is 25513633. The next prime is 25513687. The reversal of 25513651 is 15631552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25513651 - 2¹⁵ = 25480883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25513451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23680 + ... + 24733.

It is an arithmetic number, because the mean of its divisors is an integer number (3485808).

Almost surely, 2^25513651 is an apocalyptic number.

25513651 is a deficient number, since it is larger than the sum of its proper divisors (2372813).

25513651 is a wasteful number, since it uses less digits than its factorization.

25513651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48461.

The product of its digits is 4500, while the sum is 28.

The square root of 25513651 is about 5051.1039387445. The cubic root of 25513651 is about 294.3907795028.

The spelling of 25513651 in words is "twenty-five million, five hundred thirteen thousand, six hundred fifty-one".