25302130450 has 12 divisors (see below), whose sum is σ = 47061962730. Its totient is φ = 10120852160.

The previous prime is 25302130369. The next prime is 25302130481. The reversal of 25302130450 is 5403120352.

It can be written as a sum of positive squares in 3 ways, for example, as 10106884089 + 15195246361 = 100533^2 + 123269^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253021255 + ... + 253021354.

Almost surely, 2^25302130450 is an apocalyptic number.

25302130450 is a deficient number, since it is larger than the sum of its proper divisors (21759832280).

25302130450 is a wasteful number, since it uses less digits than its factorization.

25302130450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506042621 (or 506042616 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 25302130450 in words is "twenty-five billion, three hundred two million, one hundred thirty thousand, four hundred fifty".