25122715603 has 2 divisors, whose sum is σ = 25122715604. Its totient is φ = 25122715602.

The previous prime is 25122715559. The next prime is 25122715619. The reversal of 25122715603 is 30651722152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25122715603 - 2¹³ = 25122707411 is a prime.

It is not a weakly prime, because it can be changed into another prime (25122715663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12561357801 + 12561357802.

It is an arithmetic number, because the mean of its divisors is an integer number (12561357802).

Almost surely, 2^25122715603 is an apocalyptic number.

25122715603 is a deficient number, since it is larger than the sum of its proper divisors (1).

25122715603 is an equidigital number, since it uses as much as digits as its factorization.

25122715603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 25122715603 in words is "twenty-five billion, one hundred twenty-two million, seven hundred fifteen thousand, six hundred three".