25025025279 has 8 divisors (see below), whose sum is σ = 33372852352. Its totient is φ = 16680274200.

The previous prime is 25025025217. The next prime is 25025025283. The reversal of 25025025279 is 97252052052.

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

It is not a de Polignac number, because 25025025279 - 2⁹ = 25025024767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25025025299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749947 + ... + 782604.

It is an arithmetic number, because the mean of its divisors is an integer number (4171606544).

Almost surely, 2^25025025279 is an apocalyptic number.

25025025279 is a deficient number, since it is larger than the sum of its proper divisors (8347827073).

25025025279 is a wasteful number, since it uses less digits than its factorization.

25025025279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537997.

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 25025025279 in words is "twenty-five billion, twenty-five million, twenty-five thousand, two hundred seventy-nine".