42253546 has 4 divisors (see below), whose sum is σ = 63380322. Its totient is φ = 21126772.

The previous prime is 42253543. The next prime is 42253579. The reversal of 42253546 is 64535224.

42253546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 36469521 + 5784025 = 6039^2 + 2405^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42253543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10563385 + ... + 10563388.

Almost surely, 2^42253546 is an apocalyptic number.

42253546 is a deficient number, since it is larger than the sum of its proper divisors (21126776).

42253546 is a wasteful number, since it uses less digits than its factorization.

42253546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21126775.

The product of its digits is 28800, while the sum is 31.

The square root of 42253546 is about 6500.2727635077. The cubic root of 42253546 is about 348.3007320256.

The spelling of 42253546 in words is "forty-two million, two hundred fifty-three thousand, five hundred forty-six".