25342445650 has 24 divisors (see below), whose sum is σ = 47206638180. Its totient is φ = 10121991360.

The previous prime is 25342445647. The next prime is 25342445659. The reversal of 25342445650 is 5654424352.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 23576681209 + 1765764441 = 153547^2 + 42021^2 .

It is not an unprimeable number, because it can be changed into a prime (25342445659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340485 + ... + 408184.

Almost surely, 2^25342445650 is an apocalyptic number.

25342445650 is a deficient number, since it is larger than the sum of its proper divisors (21864192530).

25342445650 is a wasteful number, since it uses less digits than its factorization.

25342445650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749358 (or 749353 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

The spelling of 25342445650 in words is "twenty-five billion, three hundred forty-two million, four hundred forty-five thousand, six hundred fifty".