25307335063 has 2 divisors, whose sum is σ = 25307335064. Its totient is φ = 25307335062.

The previous prime is 25307335061. The next prime is 25307335087. The reversal of 25307335063 is 36053370352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25307335063 - 2¹ = 25307335061 is a prime.

It is a super-2 number, since 2×25307335063² (a number of 22 digits) contains 22 as substring.

Together with 25307335061, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25307335061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12653667531 + 12653667532.

It is an arithmetic number, because the mean of its divisors is an integer number (12653667532).

Almost surely, 2^25307335063 is an apocalyptic number.

25307335063 is a deficient number, since it is larger than the sum of its proper divisors (1).

25307335063 is an equidigital number, since it uses as much as digits as its factorization.

25307335063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 37.

The spelling of 25307335063 in words is "twenty-five billion, three hundred seven million, three hundred thirty-five thousand, sixty-three".