42053385 has 16 divisors (see below), whose sum is σ = 73402560. Its totient is φ = 20389440.

The previous prime is 42053381. The next prime is 42053387. The reversal of 42053385 is 58335024.

It is not a de Polignac number, because 42053385 - 2² = 42053381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42053381) 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 15 ways as a sum of consecutive naturals, for example, 127270 + ... + 127599.

It is an arithmetic number, because the mean of its divisors is an integer number (4587660).

Almost surely, 2^42053385 is an apocalyptic number.

It is an amenable number.

42053385 is a deficient number, since it is larger than the sum of its proper divisors (31349175).

42053385 is a wasteful number, since it uses less digits than its factorization.

42053385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254888.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 42053385 is about 6484.8581326040. The cubic root of 42053385 is about 347.7498780717.

The spelling of 42053385 in words is "forty-two million, fifty-three thousand, three hundred eighty-five".