42010825 has 12 divisors (see below), whose sum is σ = 55158300. Its totient is φ = 31631360.

The previous prime is 42010819. The next prime is 42010861. The reversal of 42010825 is 52801024.

It can be written as a sum of positive squares in 6 ways, for example, as 227529 + 41783296 = 477^2 + 6464^2 .

It is not a de Polignac number, because 42010825 - 2³ = 42010817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42010796 and 42010805.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49000 + ... + 49849.

It is an arithmetic number, because the mean of its divisors is an integer number (4596525).

Almost surely, 2^42010825 is an apocalyptic number.

It is an amenable number.

42010825 is a deficient number, since it is larger than the sum of its proper divisors (13147475).

42010825 is a wasteful number, since it uses less digits than its factorization.

42010825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98876 (or 98871 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 42010825 is about 6481.5758114829. The cubic root of 42010825 is about 347.6325254062.

Adding to 42010825 its reverse (52801024), we get a palindrome (94811849).

The spelling of 42010825 in words is "forty-two million, ten thousand, eight hundred twenty-five".