25936403 has 2 divisors, whose sum is σ = 25936404. Its totient is φ = 25936402.

The previous prime is 25936399. The next prime is 25936409. The reversal of 25936403 is 30463952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25936403 - 2² = 25936399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25936403.

It is not a weakly prime, because it can be changed into another prime (25936409) 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, 12968201 + 12968202.

It is an arithmetic number, because the mean of its divisors is an integer number (12968202).

Almost surely, 2^25936403 is an apocalyptic number.

25936403 is a deficient number, since it is larger than the sum of its proper divisors (1).

25936403 is an equidigital number, since it uses as much as digits as its factorization.

25936403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 25936403 is about 5092.7794965029. The cubic root of 25936403 is about 296.0078636516.

The spelling of 25936403 in words is "twenty-five million, nine hundred thirty-six thousand, four hundred three".