25503450089 has 16 divisors (see below), whose sum is σ = 27815928000. Its totient is φ = 23241473856.

The previous prime is 25503450079. The next prime is 25503450097. The reversal of 25503450089 is 98005430552.

It is a cyclic number.

It is not a de Polignac number, because 25503450089 - 2⁸ = 25503449833 is a prime.

It is a super-2 number, since 2×25503450089² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25503450029) 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, 1663742 + ... + 1679000.

It is an arithmetic number, because the mean of its divisors is an integer number (1738495500).

Almost surely, 2^25503450089 is an apocalyptic number.

It is an amenable number.

25503450089 is a deficient number, since it is larger than the sum of its proper divisors (2312477911).

25503450089 is a wasteful number, since it uses less digits than its factorization.

25503450089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16904.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 25503450089 in words is "twenty-five billion, five hundred three million, four hundred fifty thousand, eighty-nine".