25716133901 has 2 divisors, whose sum is σ = 25716133902. Its totient is φ = 25716133900.

The previous prime is 25716133879. The next prime is 25716133907. The reversal of 25716133901 is 10933161752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16331562025 + 9384571876 = 127795^2 + 96874^2 .

It is a cyclic number.

It is not a de Polignac number, because 25716133901 - 2⁶ = 25716133837 is a prime.

It is a super-2 number, since 2×25716133901² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25716133907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12858066950 + 12858066951.

It is an arithmetic number, because the mean of its divisors is an integer number (12858066951).

Almost surely, 2^25716133901 is an apocalyptic number.

It is an amenable number.

25716133901 is a deficient number, since it is larger than the sum of its proper divisors (1).

25716133901 is an equidigital number, since it uses as much as digits as its factorization.

25716133901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The spelling of 25716133901 in words is "twenty-five billion, seven hundred sixteen million, one hundred thirty-three thousand, nine hundred one".