25954403 has 2 divisors, whose sum is σ = 25954404. Its totient is φ = 25954402.

The previous prime is 25954381. The next prime is 25954421. The reversal of 25954403 is 30445952.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25954403 - 2⁶ = 25954339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25954403.

It is not a weakly prime, because it can be changed into another prime (25954303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12977201 + 12977202.

It is an arithmetic number, because the mean of its divisors is an integer number (12977202).

Almost surely, 2^25954403 is an apocalyptic number.

25954403 is a deficient number, since it is larger than the sum of its proper divisors (1).

25954403 is an equidigital number, since it uses as much as digits as its factorization.

25954403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 25954403 is about 5094.5463978651. The cubic root of 25954403 is about 296.0763248209.

The spelling of 25954403 in words is "twenty-five million, nine hundred fifty-four thousand, four hundred three".