825020503 has 2 divisors, whose sum is σ = 825020504. Its totient is φ = 825020502.

The previous prime is 825020473. The next prime is 825020531. The reversal of 825020503 is 305020528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825020503 - 2²⁹ = 288149591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825020543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412510251 + 412510252.

It is an arithmetic number, because the mean of its divisors is an integer number (412510252).

Almost surely, 2^825020503 is an apocalyptic number.

825020503 is a deficient number, since it is larger than the sum of its proper divisors (1).

825020503 is an equidigital number, since it uses as much as digits as its factorization.

825020503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 825020503 is about 28723.1701418907. The cubic root of 825020503 is about 937.8964971272.

Adding to 825020503 its sum of digits (25), we get a palindrome (825020528).

The spelling of 825020503 in words is "eight hundred twenty-five million, twenty thousand, five hundred three".