25402673 has 2 divisors, whose sum is σ = 25402674. Its totient is φ = 25402672.

The previous prime is 25402669. The next prime is 25402679. The reversal of 25402673 is 37620452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17205904 + 8196769 = 4148^2 + 2863^2 .

It is a cyclic number.

It is not a de Polignac number, because 25402673 - 2² = 25402669 is a prime.

It is not a weakly prime, because it can be changed into another prime (25402679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12701336 + 12701337.

It is an arithmetic number, because the mean of its divisors is an integer number (12701337).

Almost surely, 2^25402673 is an apocalyptic number.

It is an amenable number.

25402673 is a deficient number, since it is larger than the sum of its proper divisors (1).

25402673 is an equidigital number, since it uses as much as digits as its factorization.

25402673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 25402673 is about 5040.1064472886. The cubic root of 25402673 is about 293.9633170330.

The spelling of 25402673 in words is "twenty-five million, four hundred two thousand, six hundred seventy-three".