25652614450 has 12 divisors (see below), whose sum is σ = 47713862970. Its totient is φ = 10261045760.

The previous prime is 25652614441. The next prime is 25652614453. The reversal of 25652614450 is 5441625652.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 23379327409 + 2273287041 = 152903^2 + 47679^2 .

It is not an unprimeable number, because it can be changed into a prime (25652614453) 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, 256526095 + ... + 256526194.

Almost surely, 2^25652614450 is an apocalyptic number.

25652614450 is a deficient number, since it is larger than the sum of its proper divisors (22061248520).

25652614450 is a wasteful number, since it uses less digits than its factorization.

25652614450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513052301 (or 513052296 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 25652614450 in words is "twenty-five billion, six hundred fifty-two million, six hundred fourteen thousand, four hundred fifty".