42250547 has 4 divisors (see below), whose sum is σ = 44474280. Its totient is φ = 40026816.

The previous prime is 42250531. The next prime is 42250577. The reversal of 42250547 is 74505224.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42250547 - 2⁴ = 42250531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42250577) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1111838 + ... + 1111875.

It is an arithmetic number, because the mean of its divisors is an integer number (11118570).

Almost surely, 2^42250547 is an apocalyptic number.

42250547 is a deficient number, since it is larger than the sum of its proper divisors (2223733).

42250547 is a wasteful number, since it uses less digits than its factorization.

42250547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223732.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 42250547 is about 6500.0420767869. The cubic root of 42250547 is about 348.2924914659.

The spelling of 42250547 in words is "forty-two million, two hundred fifty thousand, five hundred forty-seven".