25715608047 has 12 divisors (see below), whose sum is σ = 37203641904. Its totient is φ = 17116565760.

The previous prime is 25715608031. The next prime is 25715608057. The reversal of 25715608047 is 74080651752.

25715608047 is a `hidden beast` number, since 2 + 5 + 7 + 1 + 560 + 80 + 4 + 7 = 666.

It is not a de Polignac number, because 25715608047 - 2⁴ = 25715608031 is a prime.

It is a super-2 number, since 2×25715608047² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25715607993 and 25715608011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25715608057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2258418 + ... + 2269775.

It is an arithmetic number, because the mean of its divisors is an integer number (3100303492).

Almost surely, 2^25715608047 is an apocalyptic number.

25715608047 is a deficient number, since it is larger than the sum of its proper divisors (11488033857).

25715608047 is a wasteful number, since it uses less digits than its factorization.

25715608047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528830 (or 4528827 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 25715608047 in words is "twenty-five billion, seven hundred fifteen million, six hundred eight thousand, forty-seven".