25160400557 has 16 divisors (see below), whose sum is σ = 26625024000. Its totient is φ = 23727550704.

The previous prime is 25160400539. The next prime is 25160400593. The reversal of 25160400557 is 75500406152.

It is a cyclic number.

It is not a de Polignac number, because 25160400557 - 2⁸ = 25160400301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25160400157) by changing a digit.

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, 1296794 + ... + 1316052.

It is an arithmetic number, because the mean of its divisors is an integer number (1664064000).

Almost surely, 2^25160400557 is an apocalyptic number.

It is an amenable number.

25160400557 is a deficient number, since it is larger than the sum of its proper divisors (1464623443).

25160400557 is a wasteful number, since it uses less digits than its factorization.

25160400557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 25160400557 in words is "twenty-five billion, one hundred sixty million, four hundred thousand, five hundred fifty-seven".