25478562627 has 24 divisors (see below), whose sum is σ = 43416622080. Its totient is φ = 14089526640.

The previous prime is 25478562617. The next prime is 25478562647. The reversal of 25478562627 is 72626587452.

25478562627 is a `hidden beast` number, since 2 + 5 + 4 + 7 + 8 + 5 + 6 + 2 + 627 = 666.

It is not a de Polignac number, because 25478562627 - 2¹⁴ = 25478546243 is a prime.

It is a super-2 number, since 2×25478562627² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25478562607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6520977 + ... + 6524882.

It is an arithmetic number, because the mean of its divisors is an integer number (1809025920).

Almost surely, 2^25478562627 is an apocalyptic number.

25478562627 is a deficient number, since it is larger than the sum of its proper divisors (17938059453).

25478562627 is a wasteful number, since it uses less digits than its factorization.

25478562627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13045903 (or 13045900 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The spelling of 25478562627 in words is "twenty-five billion, four hundred seventy-eight million, five hundred sixty-two thousand, six hundred twenty-seven".