25921319003 has 2 divisors, whose sum is σ = 25921319004. Its totient is φ = 25921319002.

The previous prime is 25921318991. The next prime is 25921319027. The reversal of 25921319003 is 30091312952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25921319003 - 2²⁰ = 25920270427 is a prime.

It is not a weakly prime, because it can be changed into another prime (25921319503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12960659501 + 12960659502.

It is an arithmetic number, because the mean of its divisors is an integer number (12960659502).

Almost surely, 2^25921319003 is an apocalyptic number.

25921319003 is a deficient number, since it is larger than the sum of its proper divisors (1).

25921319003 is an equidigital number, since it uses as much as digits as its factorization.

25921319003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The spelling of 25921319003 in words is "twenty-five billion, nine hundred twenty-one million, three hundred nineteen thousand, three".