42531850 has 12 divisors (see below), whose sum is σ = 79109334. Its totient is φ = 17012720.

The previous prime is 42531809. The next prime is 42531887. The reversal of 42531850 is 5813524.

It can be written as a sum of positive squares in 3 ways, for example, as 37051569 + 5480281 = 6087^2 + 2341^2 .

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, 425269 + ... + 425368.

Almost surely, 2^42531850 is an apocalyptic number.

42531850 is a deficient number, since it is larger than the sum of its proper divisors (36577484).

42531850 is a wasteful number, since it uses less digits than its factorization.

42531850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850649 (or 850644 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 42531850 is about 6521.6447312009. The cubic root of 42531850 is about 349.0637563015.

The spelling of 42531850 in words is "forty-two million, five hundred thirty-one thousand, eight hundred fifty".