25496463537 has 6 divisors (see below), whose sum is σ = 36828225122. Its totient is φ = 16997642352.

The previous prime is 25496463523. The next prime is 25496463547. The reversal of 25496463537 is 73536469452.

25496463537 is a `hidden beast` number, since 2 + 5 + 49 + 6 + 4 + 63 + 537 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24211671201 + 1284792336 = 155601^2 + 35844^2 .

It is not a de Polignac number, because 25496463537 - 2²⁴ = 25479686321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25496463547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1416470188 + ... + 1416470205.

Almost surely, 2^25496463537 is an apocalyptic number.

It is an amenable number.

25496463537 is a deficient number, since it is larger than the sum of its proper divisors (11331761585).

25496463537 is a wasteful number, since it uses less digits than its factorization.

25496463537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832940399 (or 2832940396 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 54.

The spelling of 25496463537 in words is "twenty-five billion, four hundred ninety-six million, four hundred sixty-three thousand, five hundred thirty-seven".