42253385 has 8 divisors (see below), whose sum is σ = 50923080. Its totient is φ = 33656704.

The previous prime is 42253361. The next prime is 42253417. The reversal of 42253385 is 58335224.

It can be written as a sum of positive squares in 4 ways, for example, as 9259849 + 32993536 = 3043^2 + 5744^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42253385 - 2¹² = 42249289 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 16970 + ... + 19299.

It is an arithmetic number, because the mean of its divisors is an integer number (6365385).

Almost surely, 2^42253385 is an apocalyptic number.

It is an amenable number.

42253385 is a deficient number, since it is larger than the sum of its proper divisors (8669695).

42253385 is a wasteful number, since it uses less digits than its factorization.

42253385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36507.

The product of its digits is 28800, while the sum is 32.

The square root of 42253385 is about 6500.2603794002. The cubic root of 42253385 is about 348.3002896447.

The spelling of 42253385 in words is "forty-two million, two hundred fifty-three thousand, three hundred eighty-five".