42845253 has 48 divisors (see below), whose sum is σ = 68257728. Its totient is φ = 23795200.

The previous prime is 42845249. The next prime is 42845281. The reversal of 42845253 is 35254824.

It is not a de Polignac number, because 42845253 - 2² = 42845249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42845203) 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 47 ways as a sum of consecutive naturals, for example, 326998 + ... + 327128.

It is an arithmetic number, because the mean of its divisors is an integer number (1422036).

Almost surely, 2^42845253 is an apocalyptic number.

It is an amenable number.

42845253 is a deficient number, since it is larger than the sum of its proper divisors (25412475).

42845253 is a wasteful number, since it uses less digits than its factorization.

42845253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 215 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 42845253 is about 6545.6285412480. The cubic root of 42845253 is about 349.9190370552.

The spelling of 42845253 in words is "forty-two million, eight hundred forty-five thousand, two hundred fifty-three".