25331646053 has 4 divisors (see below), whose sum is σ = 28950452640. Its totient is φ = 21712839468.

The previous prime is 25331646049. The next prime is 25331646079. The reversal of 25331646053 is 35064613352.

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 25331646053 - 2² = 25331646049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25331645998 and 25331646016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25331646253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809403283 + ... + 1809403296.

It is an arithmetic number, because the mean of its divisors is an integer number (7237613160).

Almost surely, 2^25331646053 is an apocalyptic number.

It is an amenable number.

25331646053 is a deficient number, since it is larger than the sum of its proper divisors (3618806587).

25331646053 is an equidigital number, since it uses as much as digits as its factorization.

25331646053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618806586.

The product of its (nonzero) digits is 194400, while the sum is 38.

The spelling of 25331646053 in words is "twenty-five billion, three hundred thirty-one million, six hundred forty-six thousand, fifty-three".