25422403 has 4 divisors (see below), whose sum is σ = 25432848. Its totient is φ = 25411960.

The previous prime is 25422379. The next prime is 25422427. The reversal of 25422403 is 30422452.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (25422379) and next prime (25422427).

It is a cyclic number.

It is not a de Polignac number, because 25422403 - 2¹³ = 25414211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25422443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573 + ... + 7153.

It is an arithmetic number, because the mean of its divisors is an integer number (6358212).

Almost surely, 2^25422403 is an apocalyptic number.

25422403 is a deficient number, since it is larger than the sum of its proper divisors (10445).

25422403 is an equidigital number, since it uses as much as digits as its factorization.

25422403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10444.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 25422403 is about 5042.0633673130. The cubic root of 25422403 is about 294.0394034527.

Adding to 25422403 its reverse (30422452), we get a palindrome (55844855).

The spelling of 25422403 in words is "twenty-five million, four hundred twenty-two thousand, four hundred three".