25866140530 has 32 divisors (see below), whose sum is σ = 48074780160. Its totient is φ = 10009820160.

The previous prime is 25866140513. The next prime is 25866140537. The reversal of 25866140530 is 3504166852.

It is not an unprimeable number, because it can be changed into a prime (25866140537) 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, 1298002 + ... + 1317778.

It is an arithmetic number, because the mean of its divisors is an integer number (1502336880).

Almost surely, 2^25866140530 is an apocalyptic number.

25866140530 is a deficient number, since it is larger than the sum of its proper divisors (22208639630).

25866140530 is a wasteful number, since it uses less digits than its factorization.

25866140530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24034.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 25866140530 in words is "twenty-five billion, eight hundred sixty-six million, one hundred forty thousand, five hundred thirty".