825103457 has 2 divisors, whose sum is σ = 825103458. Its totient is φ = 825103456.

The previous prime is 825103453. The next prime is 825103511. The reversal of 825103457 is 754301528.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 804346321 + 20757136 = 28361^2 + 4556^2 .

It is a cyclic number.

It is not a de Polignac number, because 825103457 - 2² = 825103453 is a prime.

It is not a weakly prime, because it can be changed into another prime (825103453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412551728 + 412551729.

It is an arithmetic number, because the mean of its divisors is an integer number (412551729).

Almost surely, 2^825103457 is an apocalyptic number.

It is an amenable number.

825103457 is a deficient number, since it is larger than the sum of its proper divisors (1).

825103457 is an equidigital number, since it uses as much as digits as its factorization.

825103457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 825103457 is about 28724.6141314379. The cubic root of 825103457 is about 937.9279305515.

The spelling of 825103457 in words is "eight hundred twenty-five million, one hundred three thousand, four hundred fifty-seven".