25703645052 has 48 divisors (see below), whose sum is σ = 63556567200. Its totient is φ = 8070666240.

The previous prime is 25703645029. The next prime is 25703645063. The reversal of 25703645052 is 25054630752.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25703645052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886477 + ... + 915012.

It is an arithmetic number, because the mean of its divisors is an integer number (1324095150).

Almost surely, 2^25703645052 is an apocalyptic number.

It is an amenable number.

25703645052 is an abundant number, since it is smaller than the sum of its proper divisors (37852922148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25703645052 is a wasteful number, since it uses less digits than its factorization.

25703645052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801566 (or 1801564 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 39.

The spelling of 25703645052 in words is "twenty-five billion, seven hundred three million, six hundred forty-five thousand, fifty-two".