825111403 has 4 divisors (see below), whose sum is σ = 826046728. Its totient is φ = 824176080.

The previous prime is 825111389. The next prime is 825111421. The reversal of 825111403 is 304111528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 825111403 - 2²⁵ = 791556971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825114403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466338 + ... + 468103.

It is an arithmetic number, because the mean of its divisors is an integer number (206511682).

Almost surely, 2^825111403 is an apocalyptic number.

825111403 is a deficient number, since it is larger than the sum of its proper divisors (935325).

825111403 is an equidigital number, since it uses as much as digits as its factorization.

825111403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935324.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 825111403 is about 28724.7524445381. The cubic root of 825111403 is about 937.9309413866.

The spelling of 825111403 in words is "eight hundred twenty-five million, one hundred eleven thousand, four hundred three".