42256325 has 6 divisors (see below), whose sum is σ = 52397874. Its totient is φ = 33805040.

The previous prime is 42256321. The next prime is 42256327. The reversal of 42256325 is 52365224.

It can be written as a sum of positive squares in 3 ways, for example, as 4519876 + 37736449 = 2126^2 + 6143^2 .

It is not a de Polignac number, because 42256325 - 2² = 42256321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42256321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 845102 + ... + 845151.

It is an arithmetic number, because the mean of its divisors is an integer number (8732979).

Almost surely, 2^42256325 is an apocalyptic number.

It is an amenable number.

42256325 is a deficient number, since it is larger than the sum of its proper divisors (10141549).

42256325 is a wasteful number, since it uses less digits than its factorization.

42256325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690263 (or 1690258 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 42256325 is about 6500.4865202537. The cubic root of 42256325 is about 348.3083677281.

The spelling of 42256325 in words is "forty-two million, two hundred fifty-six thousand, three hundred twenty-five".