25480837313 has 4 divisors (see below), whose sum is σ = 25518475860. Its totient is φ = 25443198768.

The previous prime is 25480837303. The next prime is 25480837337. The reversal of 25480837313 is 31373808452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15953710864 + 9527126449 = 126308^2 + 97607^2 .

It is a cyclic number.

It is not a de Polignac number, because 25480837313 - 2⁴ = 25480837297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25480837303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18818258 + ... + 18819611.

It is an arithmetic number, because the mean of its divisors is an integer number (6379618965).

Almost surely, 2^25480837313 is an apocalyptic number.

It is an amenable number.

25480837313 is a deficient number, since it is larger than the sum of its proper divisors (37638547).

25480837313 is an equidigital number, since it uses as much as digits as its factorization.

25480837313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37638546.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 25480837313 in words is "twenty-five billion, four hundred eighty million, eight hundred thirty-seven thousand, three hundred thirteen".