25138740627 has 288 divisors, whose sum is σ = 52052582400. Its totient is φ = 11595830400.

The previous prime is 25138740623. The next prime is 25138740643. The reversal of 25138740627 is 72604783152.

25138740627 is a `hidden beast` number, since 2 + 5 + 13 + 8 + 7 + 4 + 0 + 627 = 666.

It is not a de Polignac number, because 25138740627 - 2² = 25138740623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25138740623) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 150531298 + ... + 150531464.

Almost surely, 2^25138740627 is an apocalyptic number.

25138740627 is an abundant number, since it is smaller than the sum of its proper divisors (26913841773).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25138740627 is a wasteful number, since it uses less digits than its factorization.

25138740627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 25138740627 in words is "twenty-five billion, one hundred thirty-eight million, seven hundred forty thousand, six hundred twenty-seven".