25830403 has 16 divisors (see below), whose sum is σ = 28016640. Its totient is φ = 23750496.

The previous prime is 25830383. The next prime is 25830407. The reversal of 25830403 is 30403852.

It is a cyclic number.

It is not a de Polignac number, because 25830403 - 2¹³ = 25822211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25830407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107958 + ... + 108196.

It is an arithmetic number, because the mean of its divisors is an integer number (1751040).

Almost surely, 2^25830403 is an apocalyptic number.

25830403 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25830403 is a deficient number, since it is larger than the sum of its proper divisors (2186237).

25830403 is a wasteful number, since it uses less digits than its factorization.

25830403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 25830403 is about 5082.3619509043. The cubic root of 25830403 is about 295.6040595757.

The spelling of 25830403 in words is "twenty-five million, eight hundred thirty thousand, four hundred three".