25434490603 has 2 divisors, whose sum is σ = 25434490604. Its totient is φ = 25434490602.

The previous prime is 25434490541. The next prime is 25434490649. The reversal of 25434490603 is 30609443452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25434490603 is a prime.

It is not a weakly prime, because it can be changed into another prime (25434490693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12717245301 + 12717245302.

It is an arithmetic number, because the mean of its divisors is an integer number (12717245302).

Almost surely, 2^25434490603 is an apocalyptic number.

25434490603 is a deficient number, since it is larger than the sum of its proper divisors (1).

25434490603 is an equidigital number, since it uses as much as digits as its factorization.

25434490603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 25434490603 in words is "twenty-five billion, four hundred thirty-four million, four hundred ninety thousand, six hundred three".