25464737 has 2 divisors, whose sum is σ = 25464738. Its totient is φ = 25464736.

The previous prime is 25464727. The next prime is 25464739. The reversal of 25464737 is 73746452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25441936 + 22801 = 5044^2 + 151^2 .

It is a cyclic number.

It is not a de Polignac number, because 25464737 - 2⁴ = 25464721 is a prime.

Together with 25464739, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25464737.

It is not a weakly prime, because it can be changed into another prime (25464739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12732368 + 12732369.

It is an arithmetic number, because the mean of its divisors is an integer number (12732369).

Almost surely, 2^25464737 is an apocalyptic number.

It is an amenable number.

25464737 is a deficient number, since it is larger than the sum of its proper divisors (1).

25464737 is an equidigital number, since it uses as much as digits as its factorization.

25464737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 38.

The square root of 25464737 is about 5046.2597039788. The cubic root of 25464737 is about 294.2025267813.

The spelling of 25464737 in words is "twenty-five million, four hundred sixty-four thousand, seven hundred thirty-seven".