25465901 has 2 divisors, whose sum is σ = 25465902. Its totient is φ = 25465900.

The previous prime is 25465897. The next prime is 25465907. The reversal of 25465901 is 10956452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23290276 + 2175625 = 4826^2 + 1475^2 .

It is a cyclic number.

It is not a de Polignac number, because 25465901 - 2² = 25465897 is a prime.

It is a super-2 number, since 2×25465901² = 1297024227483602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25465907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12732950 + 12732951.

It is an arithmetic number, because the mean of its divisors is an integer number (12732951).

Almost surely, 2^25465901 is an apocalyptic number.

It is an amenable number.

25465901 is a deficient number, since it is larger than the sum of its proper divisors (1).

25465901 is an equidigital number, since it uses as much as digits as its factorization.

25465901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 25465901 is about 5046.3750356072. The cubic root of 25465901 is about 294.2070094053.

The spelling of 25465901 in words is "twenty-five million, four hundred sixty-five thousand, nine hundred one".