42803825 has 6 divisors (see below), whose sum is σ = 53076774. Its totient is φ = 34243040.

The previous prime is 42803809. The next prime is 42803837. The reversal of 42803825 is 52830824.

It can be written as a sum of positive squares in 3 ways, for example, as 6310144 + 36493681 = 2512^2 + 6041^2 .

It is not a de Polignac number, because 42803825 - 2⁴ = 42803809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42803791 and 42803800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 856052 + ... + 856101.

It is an arithmetic number, because the mean of its divisors is an integer number (8846129).

Almost surely, 2^42803825 is an apocalyptic number.

It is an amenable number.

42803825 is a deficient number, since it is larger than the sum of its proper divisors (10272949).

42803825 is a wasteful number, since it uses less digits than its factorization.

42803825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712163 (or 1712158 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 42803825 is about 6542.4632211423. The cubic root of 42803825 is about 349.8062192619.

The spelling of 42803825 in words is "forty-two million, eight hundred three thousand, eight hundred twenty-five".