25405940467 has 2 divisors, whose sum is σ = 25405940468. Its totient is φ = 25405940466.

The previous prime is 25405940453. The next prime is 25405940501. The reversal of 25405940467 is 76404950452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25405940467 - 2¹¹ = 25405938419 is a prime.

It is a super-2 number, since 2×25405940467² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25405941467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12702970233 + 12702970234.

It is an arithmetic number, because the mean of its divisors is an integer number (12702970234).

Almost surely, 2^25405940467 is an apocalyptic number.

25405940467 is a deficient number, since it is larger than the sum of its proper divisors (1).

25405940467 is an equidigital number, since it uses as much as digits as its factorization.

25405940467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 25405940467 in words is "twenty-five billion, four hundred five million, nine hundred forty thousand, four hundred sixty-seven".