42685253 has 8 divisors (see below), whose sum is σ = 46212096. Its totient is φ = 39193200.

The previous prime is 42685241. The next prime is 42685273. The reversal of 42685253 is 35258624.

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

It is a de Polignac number, because none of the positive numbers 2^k-42685253 is a prime.

It is a super-3 number, since 3×42685253³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42685273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6113 + ... + 11078.

It is an arithmetic number, because the mean of its divisors is an integer number (5776512).

Almost surely, 2^42685253 is an apocalyptic number.

It is an amenable number.

42685253 is a deficient number, since it is larger than the sum of its proper divisors (3526843).

42685253 is a wasteful number, since it uses less digits than its factorization.

42685253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17395.

The product of its digits is 57600, while the sum is 35.

The square root of 42685253 is about 6533.3952122920. The cubic root of 42685253 is about 349.4829180840.

The spelling of 42685253 in words is "forty-two million, six hundred eighty-five thousand, two hundred fifty-three".