25285867079 has 8 divisors (see below), whose sum is σ = 28535775120. Its totient is φ = 22194491200.

The previous prime is 25285867069. The next prime is 25285867111. The reversal of 25285867079 is 97076858252.

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 25285867079 - 2²⁸ = 25017431623 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 (25285867039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39632702 + ... + 39633339.

It is an arithmetic number, because the mean of its divisors is an integer number (3566971890).

Almost surely, 2^25285867079 is an apocalyptic number.

25285867079 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

25285867079 is a deficient number, since it is larger than the sum of its proper divisors (3249908041).

25285867079 is a wasteful number, since it uses less digits than its factorization.

25285867079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79266081.

The product of its (nonzero) digits is 16934400, while the sum is 59.

The spelling of 25285867079 in words is "twenty-five billion, two hundred eighty-five million, eight hundred sixty-seven thousand, seventy-nine".