25500513 has 8 divisors (see below), whose sum is σ = 34024576. Its totient is φ = 16988400.

The previous prime is 25500509. The next prime is 25500539. The reversal of 25500513 is 31500552.

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

It is not a de Polignac number, because 25500513 - 2² = 25500509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25500513.

It is not an unprimeable number, because it can be changed into a prime (25500113) 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 7 ways as a sum of consecutive naturals, for example, 5208 + ... + 8838.

It is an arithmetic number, because the mean of its divisors is an integer number (4253072).

Almost surely, 2^25500513 is an apocalyptic number.

It is an amenable number.

25500513 is a deficient number, since it is larger than the sum of its proper divisors (8524063).

25500513 is a wasteful number, since it uses less digits than its factorization.

25500513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5975.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 25500513 is about 5049.8032634945. The cubic root of 25500513 is about 294.3402396287.

The spelling of 25500513 in words is "twenty-five million, five hundred thousand, five hundred thirteen".