25530140489 has 16 divisors (see below), whose sum is σ = 30932530176. Its totient is φ = 20604715200.

The previous prime is 25530140483. The next prime is 25530140497. The reversal of 25530140489 is 98404103552.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25530140489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25530140483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1581842 + ... + 1597899.

It is an arithmetic number, because the mean of its divisors is an integer number (1933283136).

Almost surely, 2^25530140489 is an apocalyptic number.

It is an amenable number.

25530140489 is a deficient number, since it is larger than the sum of its proper divisors (5402389687).

25530140489 is a wasteful number, since it uses less digits than its factorization.

25530140489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179816.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 25530140489 in words is "twenty-five billion, five hundred thirty million, one hundred forty thousand, four hundred eighty-nine".