25640285710 has 32 divisors (see below), whose sum is σ = 49710894912. Its totient is φ = 9465623040.

The previous prime is 25640285689. The next prime is 25640285719. The reversal of 25640285710 is 1758204652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25640285719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1038327 + ... + 1062733.

It is an arithmetic number, because the mean of its divisors is an integer number (1553465466).

Almost surely, 2^25640285710 is an apocalyptic number.

25640285710 is a deficient number, since it is larger than the sum of its proper divisors (24070609202).

25640285710 is a wasteful number, since it uses less digits than its factorization.

25640285710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32508.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 25640285710 in words is "twenty-five billion, six hundred forty million, two hundred eighty-five thousand, seven hundred ten".