825123503 has 2 divisors, whose sum is σ = 825123504. Its totient is φ = 825123502.

The previous prime is 825123487. The next prime is 825123511. The reversal of 825123503 is 305321528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825123503 - 2⁴ = 825123487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825120503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412561751 + 412561752.

It is an arithmetic number, because the mean of its divisors is an integer number (412561752).

Almost surely, 2^825123503 is an apocalyptic number.

825123503 is a deficient number, since it is larger than the sum of its proper divisors (1).

825123503 is an equidigital number, since it uses as much as digits as its factorization.

825123503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 825123503 is about 28724.9630635098. The cubic root of 825123503 is about 937.9355261853.

The spelling of 825123503 in words is "eight hundred twenty-five million, one hundred twenty-three thousand, five hundred three".