25478802130 has 8 divisors (see below), whose sum is σ = 45861843852. Its totient is φ = 10191520848.

The previous prime is 25478802127. The next prime is 25478802227. The reversal of 25478802130 is 3120887452.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24157552329 + 1321249801 = 155427^2 + 36349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1273940097 + ... + 1273940116.

Almost surely, 2^25478802130 is an apocalyptic number.

25478802130 is a deficient number, since it is larger than the sum of its proper divisors (20383041722).

25478802130 is a wasteful number, since it uses less digits than its factorization.

25478802130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547880220.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 25478802130 in words is "twenty-five billion, four hundred seventy-eight million, eight hundred two thousand, one hundred thirty".