25734618253 has 8 divisors (see below), whose sum is σ = 25873741440. Its totient is φ = 25595757600.

The previous prime is 25734618209. The next prime is 25734618269. The reversal of 25734618253 is 35281643752.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25734618253 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 (25734618293) 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, 132553 + ... + 262753.

It is an arithmetic number, because the mean of its divisors is an integer number (3234217680).

Almost surely, 2^25734618253 is an apocalyptic number.

It is an amenable number.

25734618253 is a deficient number, since it is larger than the sum of its proper divisors (139123187).

25734618253 is a wasteful number, since it uses less digits than its factorization.

25734618253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131267.

The product of its digits is 1209600, while the sum is 46.

The spelling of 25734618253 in words is "twenty-five billion, seven hundred thirty-four million, six hundred eighteen thousand, two hundred fifty-three".