25029642274 has 40 divisors (see below), whose sum is σ = 47168559900. Its totient is φ = 9901811808.

The previous prime is 25029642271. The next prime is 25029642293. The reversal of 25029642274 is 47224692052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20290008249 + 4739634025 = 142443^2 + 68845^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25029642274.

It is not an unprimeable number, because it can be changed into a prime (25029642271) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 138049 + ... + 262900.

Almost surely, 2^25029642274 is an apocalyptic number.

25029642274 is a deficient number, since it is larger than the sum of its proper divisors (22138917626).

25029642274 is an equidigital number, since it uses as much as digits as its factorization.

25029642274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400992 (or 400971 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 25029642274 in words is "twenty-five billion, twenty-nine million, six hundred forty-two thousand, two hundred seventy-four".