25537075163 has 2 divisors, whose sum is σ = 25537075164. Its totient is φ = 25537075162.

The previous prime is 25537075159. The next prime is 25537075211. The reversal of 25537075163 is 36157073552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25537075163 - 2² = 25537075159 is a prime.

It is a super-2 number, since 2×25537075163² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25537075063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12768537581 + 12768537582.

It is an arithmetic number, because the mean of its divisors is an integer number (12768537582).

Almost surely, 2^25537075163 is an apocalyptic number.

25537075163 is a deficient number, since it is larger than the sum of its proper divisors (1).

25537075163 is an equidigital number, since it uses as much as digits as its factorization.

25537075163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 661500, while the sum is 44.

The spelling of 25537075163 in words is "twenty-five billion, five hundred thirty-seven million, seventy-five thousand, one hundred sixty-three".