42533542 has 4 divisors (see below), whose sum is σ = 63800316. Its totient is φ = 21266770.

The previous prime is 42533527. The next prime is 42533551. The reversal of 42533542 is 24533524.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42533542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10633384 + ... + 10633387.

It is an arithmetic number, because the mean of its divisors is an integer number (15950079).

Almost surely, 2^42533542 is an apocalyptic number.

42533542 is a deficient number, since it is larger than the sum of its proper divisors (21266774).

42533542 is a wasteful number, since it uses less digits than its factorization.

42533542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21266773.

The product of its digits is 14400, while the sum is 28.

The square root of 42533542 is about 6521.7744517884. The cubic root of 42533542 is about 349.0683850526.

The spelling of 42533542 in words is "forty-two million, five hundred thirty-three thousand, five hundred forty-two".