25516342253 has 8 divisors (see below), whose sum is σ = 27592140672. Its totient is φ = 23504414656.

The previous prime is 25516342237. The next prime is 25516342331. The reversal of 25516342253 is 35224361552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25516342253 - 2⁴ = 25516342237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25516342223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15966875 + ... + 15968472.

It is an arithmetic number, because the mean of its divisors is an integer number (3449017584).

Almost surely, 2^25516342253 is an apocalyptic number.

It is an amenable number.

25516342253 is a deficient number, since it is larger than the sum of its proper divisors (2075798419).

25516342253 is a wasteful number, since it uses less digits than its factorization.

25516342253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31935411.

The product of its digits is 216000, while the sum is 38.

The spelling of 25516342253 in words is "twenty-five billion, five hundred sixteen million, three hundred forty-two thousand, two hundred fifty-three".