25427485901 has 2 divisors, whose sum is σ = 25427485902. Its totient is φ = 25427485900.

The previous prime is 25427485879. The next prime is 25427485943. The reversal of 25427485901 is 10958472452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13189374025 + 12238111876 = 114845^2 + 110626^2 .

It is a cyclic number.

It is not a de Polignac number, because 25427485901 - 2³⁴ = 8247616717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25427485961) 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 as a sum of consecutive naturals, namely, 12713742950 + 12713742951.

It is an arithmetic number, because the mean of its divisors is an integer number (12713742951).

Almost surely, 2^25427485901 is an apocalyptic number.

It is an amenable number.

25427485901 is a deficient number, since it is larger than the sum of its proper divisors (1).

25427485901 is an equidigital number, since it uses as much as digits as its factorization.

25427485901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 25427485901 in words is "twenty-five billion, four hundred twenty-seven million, four hundred eighty-five thousand, nine hundred one".