25012579 has 4 divisors (see below), whose sum is σ = 25035976. Its totient is φ = 24989184.

The previous prime is 25012577. The next prime is 25012591. The reversal of 25012579 is 97521052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25012579 - 2¹ = 25012577 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 25012579.

It is not an unprimeable number, because it can be changed into a prime (25012577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10014 + ... + 12259.

It is an arithmetic number, because the mean of its divisors is an integer number (6258994).

Almost surely, 2^25012579 is an apocalyptic number.

25012579 is a deficient number, since it is larger than the sum of its proper divisors (23397).

25012579 is a wasteful number, since it uses less digits than its factorization.

25012579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23396.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 25012579 is about 5001.2577418086. The cubic root of 25012579 is about 292.4508072238.

The spelling of 25012579 in words is "twenty-five million, twelve thousand, five hundred seventy-nine".