25267427401 has 2 divisors, whose sum is σ = 25267427402. Its totient is φ = 25267427400.

The previous prime is 25267427363. The next prime is 25267427407. The reversal of 25267427401 is 10472476252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25014585600 + 252841801 = 158160^2 + 15901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25267427401 is a prime.

It is a super-2 number, since 2×25267427401² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25267427407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12633713700 + 12633713701.

It is an arithmetic number, because the mean of its divisors is an integer number (12633713701).

Almost surely, 2^25267427401 is an apocalyptic number.

It is an amenable number.

25267427401 is a deficient number, since it is larger than the sum of its proper divisors (1).

25267427401 is an equidigital number, since it uses as much as digits as its factorization.

25267427401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 25267427401 in words is "twenty-five billion, two hundred sixty-seven million, four hundred twenty-seven thousand, four hundred one".