25158767049 has 32 divisors (see below), whose sum is σ = 41224211840. Its totient is φ = 15063869376.

The previous prime is 25158767047. The next prime is 25158767059. The reversal of 25158767049 is 94076785152.

25158767049 is a `hidden beast` number, since 2 + 51 + 587 + 6 + 7 + 0 + 4 + 9 = 666.

It is not a de Polignac number, because 25158767049 - 2¹ = 25158767047 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25158766986 and 25158767004.

It is not an unprimeable number, because it can be changed into a prime (25158767047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 955627 + ... + 981600.

It is an arithmetic number, because the mean of its divisors is an integer number (1288256620).

Almost surely, 2^25158767049 is an apocalyptic number.

It is an amenable number.

25158767049 is a deficient number, since it is larger than the sum of its proper divisors (16065444791).

25158767049 is a wasteful number, since it uses less digits than its factorization.

25158767049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937286 (or 1937280 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 25158767049 in words is "twenty-five billion, one hundred fifty-eight million, seven hundred sixty-seven thousand, forty-nine".