25575428715 has 16 divisors (see below), whose sum is σ = 42331744800. Its totient is φ = 13169875712.

The previous prime is 25575428713. The next prime is 25575428717. The reversal of 25575428715 is 51782457552.

It is an interprime number because it is at equal distance from previous prime (25575428713) and next prime (25575428717).

It is a cyclic number.

It is not a de Polignac number, because 25575428715 - 2¹ = 25575428713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25575428713) 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, 29396610 + ... + 29397479.

It is an arithmetic number, because the mean of its divisors is an integer number (2645734050).

Almost surely, 2^25575428715 is an apocalyptic number.

25575428715 is a deficient number, since it is larger than the sum of its proper divisors (16756316085).

25575428715 is a wasteful number, since it uses less digits than its factorization.

25575428715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58794126.

The product of its digits is 3920000, while the sum is 51.

The spelling of 25575428715 in words is "twenty-five billion, five hundred seventy-five million, four hundred twenty-eight thousand, seven hundred fifteen".