25551609130 has 32 divisors (see below), whose sum is σ = 47613387600. Its totient is φ = 9861046272.

The previous prime is 25551609011. The next prime is 25551609131. The reversal of 25551609130 is 3190615552.

It can be written as a sum of positive squares in 8 ways, for example, as 6496843609 + 19054765521 = 80603^2 + 138039^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25551609130.

It is not an unprimeable number, because it can be changed into a prime (25551609131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377344 + ... + 439876.

Almost surely, 2^25551609130 is an apocalyptic number.

25551609130 is a deficient number, since it is larger than the sum of its proper divisors (22061778470).

25551609130 is a wasteful number, since it uses less digits than its factorization.

25551609130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63978.

The product of its (nonzero) digits is 40500, while the sum is 37.

The spelling of 25551609130 in words is "twenty-five billion, five hundred fifty-one million, six hundred nine thousand, one hundred thirty".