25402033 has 2 divisors, whose sum is σ = 25402034. Its totient is φ = 25402032.

The previous prime is 25402021. The next prime is 25402073. The reversal of 25402033 is 33020452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15460624 + 9941409 = 3932^2 + 3153^2 .

It is a cyclic number.

It is not a de Polignac number, because 25402033 - 2⁹ = 25401521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25402033.

It is not a weakly prime, because it can be changed into another prime (25402073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12701016 + 12701017.

It is an arithmetic number, because the mean of its divisors is an integer number (12701017).

Almost surely, 2^25402033 is an apocalyptic number.

It is an amenable number.

25402033 is a deficient number, since it is larger than the sum of its proper divisors (1).

25402033 is an equidigital number, since it uses as much as digits as its factorization.

25402033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 25402033 is about 5040.0429561661. The cubic root of 25402033 is about 293.9608482888.

Adding to 25402033 its reverse (33020452), we get a palindrome (58422485).

The spelling of 25402033 in words is "twenty-five million, four hundred two thousand, thirty-three".