25952242489 has 16 divisors (see below), whose sum is σ = 26650229760. Its totient is φ = 25258761360.

The previous prime is 25952242453. The next prime is 25952242493. The reversal of 25952242489 is 98424225952.

It is a cyclic number.

It is not a de Polignac number, because 25952242489 - 2¹⁷ = 25952111417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25952242889) 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, 29258004 + ... + 29258890.

It is an arithmetic number, because the mean of its divisors is an integer number (1665639360).

Almost surely, 2^25952242489 is an apocalyptic number.

It is an amenable number.

25952242489 is a deficient number, since it is larger than the sum of its proper divisors (697987271).

25952242489 is an equidigital number, since it uses as much as digits as its factorization.

25952242489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580.

The product of its digits is 4147200, while the sum is 52.

The spelling of 25952242489 in words is "twenty-five billion, nine hundred fifty-two million, two hundred forty-two thousand, four hundred eighty-nine".