25459709023 has 16 divisors (see below), whose sum is σ = 29391538176. Its totient is φ = 21601739520.

The previous prime is 25459709017. The next prime is 25459709059. The reversal of 25459709023 is 32090795452.

It is a cyclic number.

It is not a de Polignac number, because 25459709023 - 2¹⁷ = 25459577951 is a prime.

It is a super-2 number, since 2×25459709023² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25459709003) 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, 2173743 + ... + 2185423.

It is an arithmetic number, because the mean of its divisors is an integer number (1836971136).

Almost surely, 2^25459709023 is an apocalyptic number.

25459709023 is a deficient number, since it is larger than the sum of its proper divisors (3931829153).

25459709023 is a wasteful number, since it uses less digits than its factorization.

25459709023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14814.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 25459709023 in words is "twenty-five billion, four hundred fifty-nine million, seven hundred nine thousand, twenty-three".