25223054503 has 2 divisors, whose sum is σ = 25223054504. Its totient is φ = 25223054502.

The previous prime is 25223054447. The next prime is 25223054543. The reversal of 25223054503 is 30545032252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25223054503 - 2²¹ = 25220957351 is a prime.

It is a super-2 number, since 2×25223054503² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25223054543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12611527251 + 12611527252.

It is an arithmetic number, because the mean of its divisors is an integer number (12611527252).

Almost surely, 2^25223054503 is an apocalyptic number.

25223054503 is a deficient number, since it is larger than the sum of its proper divisors (1).

25223054503 is an equidigital number, since it uses as much as digits as its factorization.

25223054503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 25223054503 its reverse (30545032252), we get a palindrome (55768086755).

The spelling of 25223054503 in words is "twenty-five billion, two hundred twenty-three million, fifty-four thousand, five hundred three".