25257428703 has 24 divisors (see below), whose sum is σ = 39435439680. Its totient is φ = 15485232960.

The previous prime is 25257428671. The next prime is 25257428731. The reversal of 25257428703 is 30782475252.

25257428703 is a `hidden beast` number, since 2 + 5 + 2 + 574 + 2 + 8 + 70 + 3 = 666.

It is not a de Polignac number, because 25257428703 - 2⁵ = 25257428671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25257428773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 369783 + ... + 432728.

It is an arithmetic number, because the mean of its divisors is an integer number (1643143320).

Almost surely, 2^25257428703 is an apocalyptic number.

25257428703 is a deficient number, since it is larger than the sum of its proper divisors (14178010977).

25257428703 is a wasteful number, since it uses less digits than its factorization.

25257428703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802799 (or 802796 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 25257428703 in words is "twenty-five billion, two hundred fifty-seven million, four hundred twenty-eight thousand, seven hundred three".