25422403403 has 2 divisors, whose sum is σ = 25422403404. Its totient is φ = 25422403402.

The previous prime is 25422403397. The next prime is 25422403477. The reversal of 25422403403 is 30430422452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25422403403 - 2¹⁶ = 25422337867 is a prime.

It is not a weakly prime, because it can be changed into another prime (25422403103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12711201701 + 12711201702.

It is an arithmetic number, because the mean of its divisors is an integer number (12711201702).

Almost surely, 2^25422403403 is an apocalyptic number.

25422403403 is a deficient number, since it is larger than the sum of its proper divisors (1).

25422403403 is an equidigital number, since it uses as much as digits as its factorization.

25422403403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 25422403403 its reverse (30430422452), we get a palindrome (55852825855).

The spelling of 25422403403 in words is "twenty-five billion, four hundred twenty-two million, four hundred three thousand, four hundred three".