825123487 has 2 divisors, whose sum is σ = 825123488. Its totient is φ = 825123486.

The previous prime is 825123473. The next prime is 825123503. The reversal of 825123487 is 784321528.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 825123487 - 2⁷ = 825123359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825123427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412561743 + 412561744.

It is an arithmetic number, because the mean of its divisors is an integer number (412561744).

Almost surely, 2^825123487 is an apocalyptic number.

825123487 is a deficient number, since it is larger than the sum of its proper divisors (1).

825123487 is an equidigital number, since it uses as much as digits as its factorization.

825123487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 40.

The square root of 825123487 is about 28724.9627850064. The cubic root of 825123487 is about 937.9355201227.

The spelling of 825123487 in words is "eight hundred twenty-five million, one hundred twenty-three thousand, four hundred eighty-seven".