25533222503 has 2 divisors, whose sum is σ = 25533222504. Its totient is φ = 25533222502.

The previous prime is 25533222493. The next prime is 25533222511. The reversal of 25533222503 is 30522233552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25533222503 - 2⁴ = 25533222487 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25533222503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25533222103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12766611251 + 12766611252.

It is an arithmetic number, because the mean of its divisors is an integer number (12766611252).

Almost surely, 2^25533222503 is an apocalyptic number.

25533222503 is a deficient number, since it is larger than the sum of its proper divisors (1).

25533222503 is an equidigital number, since it uses as much as digits as its factorization.

25533222503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 32.

The spelling of 25533222503 in words is "twenty-five billion, five hundred thirty-three million, two hundred twenty-two thousand, five hundred three".