25752704857 has 16 divisors (see below), whose sum is σ = 28579910400. Its totient is φ = 23006783440.

The previous prime is 25752704839. The next prime is 25752704921. The reversal of 25752704857 is 75840725752.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25752704857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25752704807) 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, 2681418 + ... + 2691004.

It is an arithmetic number, because the mean of its divisors is an integer number (1786244400).

Almost surely, 2^25752704857 is an apocalyptic number.

It is an amenable number.

25752704857 is a deficient number, since it is larger than the sum of its proper divisors (2827205543).

25752704857 is a wasteful number, since it uses less digits than its factorization.

25752704857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13796.

The product of its (nonzero) digits is 5488000, while the sum is 52.

The spelling of 25752704857 in words is "twenty-five billion, seven hundred fifty-two million, seven hundred four thousand, eight hundred fifty-seven".