25534461313 has 4 divisors (see below), whose sum is σ = 25535133360. Its totient is φ = 25533789268.

The previous prime is 25534461311. The next prime is 25534461319. The reversal of 25534461313 is 31316443552.

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 25534461313 - 2¹ = 25534461311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25534461311) 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, 275383 + ... + 356236.

It is an arithmetic number, because the mean of its divisors is an integer number (6383783340).

Almost surely, 2^25534461313 is an apocalyptic number.

It is an amenable number.

25534461313 is a deficient number, since it is larger than the sum of its proper divisors (672047).

25534461313 is an equidigital number, since it uses as much as digits as its factorization.

25534461313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672046.

The product of its digits is 129600, while the sum is 37.

The spelling of 25534461313 in words is "twenty-five billion, five hundred thirty-four million, four hundred sixty-one thousand, three hundred thirteen".