25444504253 has 12 divisors (see below), whose sum is σ = 29612056320. Its totient is φ = 21799740312.

The previous prime is 25444504249. The next prime is 25444504289. The reversal of 25444504253 is 35240544452.

It is not a de Polignac number, because 25444504253 - 2² = 25444504249 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25444504223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6251 + ... + 225672.

It is an arithmetic number, because the mean of its divisors is an integer number (2467671360).

Almost surely, 2^25444504253 is an apocalyptic number.

It is an amenable number.

25444504253 is a deficient number, since it is larger than the sum of its proper divisors (4167552067).

25444504253 is a wasteful number, since it uses less digits than its factorization.

25444504253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234176 (or 234169 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 38.

The spelling of 25444504253 in words is "twenty-five billion, four hundred forty-four million, five hundred four thousand, two hundred fifty-three".