25284259361 has 4 divisors (see below), whose sum is σ = 25338401712. Its totient is φ = 25230117012.

The previous prime is 25284259327. The next prime is 25284259379. The reversal of 25284259361 is 16395248252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25284259361 - 2³⁰ = 24210517537 is a prime.

It is a super-2 number, since 2×25284259361² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25284259321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27070475 + ... + 27071408.

It is an arithmetic number, because the mean of its divisors is an integer number (6334600428).

Almost surely, 2^25284259361 is an apocalyptic number.

It is an amenable number.

25284259361 is a deficient number, since it is larger than the sum of its proper divisors (54142351).

25284259361 is an equidigital number, since it uses as much as digits as its factorization.

25284259361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54142350.

The product of its digits is 1036800, while the sum is 47.

The spelling of 25284259361 in words is "twenty-five billion, two hundred eighty-four million, two hundred fifty-nine thousand, three hundred sixty-one".