25355683492 has 12 divisors (see below), whose sum is σ = 44409035356. Its totient is φ = 12667387680.

The previous prime is 25355683439. The next prime is 25355683553. The reversal of 25355683492 is 29438655352.

It can be written as a sum of positive squares in 2 ways, for example, as 15184154176 + 10171529316 = 123224^2 + 100854^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2608059 + ... + 2617762.

Almost surely, 2^25355683492 is an apocalyptic number.

It is an amenable number.

25355683492 is a deficient number, since it is larger than the sum of its proper divisors (19053351864).

25355683492 is a wasteful number, since it uses less digits than its factorization.

25355683492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227038 (or 5227036 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 52.

The spelling of 25355683492 in words is "twenty-five billion, three hundred fifty-five million, six hundred eighty-three thousand, four hundred ninety-two".