25434403 has 2 divisors, whose sum is σ = 25434404. Its totient is φ = 25434402.

The previous prime is 25434373. The next prime is 25434413. The reversal of 25434403 is 30443452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25434403 - 2¹³ = 25426211 is a prime.

It is not a weakly prime, because it can be changed into another prime (25434413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12717201 + 12717202.

It is an arithmetic number, because the mean of its divisors is an integer number (12717202).

Almost surely, 2^25434403 is an apocalyptic number.

25434403 is a deficient number, since it is larger than the sum of its proper divisors (1).

25434403 is an equidigital number, since it uses as much as digits as its factorization.

25434403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 25434403 is about 5043.2532159312. The cubic root of 25434403 is about 294.0856607874.

Adding to 25434403 its reverse (30443452), we get a palindrome (55877855).

The spelling of 25434403 in words is "twenty-five million, four hundred thirty-four thousand, four hundred three".