25130554291 has 4 divisors (see below), whose sum is σ = 25135582392. Its totient is φ = 25125526192.

The previous prime is 25130554289. The next prime is 25130554301. The reversal of 25130554291 is 19245503152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25130554291 - 2¹ = 25130554289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25130554291.

It is not an unprimeable number, because it can be changed into a prime (25130554201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2506546 + ... + 2516551.

It is an arithmetic number, because the mean of its divisors is an integer number (6283895598).

Almost surely, 2^25130554291 is an apocalyptic number.

25130554291 is a deficient number, since it is larger than the sum of its proper divisors (5028101).

25130554291 is an equidigital number, since it uses as much as digits as its factorization.

25130554291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028100.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 25130554291 in words is "twenty-five billion, one hundred thirty million, five hundred fifty-four thousand, two hundred ninety-one".