25228403 has 2 divisors, whose sum is σ = 25228404. Its totient is φ = 25228402.

The previous prime is 25228397. The next prime is 25228421. The reversal of 25228403 is 30482252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25228403 - 2²⁴ = 8451187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25228433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12614201 + 12614202.

It is an arithmetic number, because the mean of its divisors is an integer number (12614202).

Almost surely, 2^25228403 is an apocalyptic number.

25228403 is a deficient number, since it is larger than the sum of its proper divisors (1).

25228403 is an equidigital number, since it uses as much as digits as its factorization.

25228403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 25228403 is about 5022.7883690237. The cubic root of 25228403 is about 293.2895482454.

The spelling of 25228403 in words is "twenty-five million, two hundred twenty-eight thousand, four hundred three".