25705052170 has 32 divisors (see below), whose sum is σ = 52884949248. Its totient is φ = 8812163328.

The previous prime is 25705052137. The next prime is 25705052171. The reversal of 25705052170 is 7125050752.

It is not an unprimeable number, because it can be changed into a prime (25705052171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877602 + ... + 906418.

It is an arithmetic number, because the mean of its divisors is an integer number (1652654664).

Almost surely, 2^25705052170 is an apocalyptic number.

25705052170 is an abundant number, since it is smaller than the sum of its proper divisors (27179897078).

25705052170 is a wasteful number, since it uses less digits than its factorization.

25705052170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41574.

The product of its (nonzero) digits is 24500, while the sum is 34.

The spelling of 25705052170 in words is "twenty-five billion, seven hundred five million, fifty-two thousand, one hundred seventy".