42531353 has 4 divisors (see below), whose sum is σ = 42568548. Its totient is φ = 42494160.

The previous prime is 42531341. The next prime is 42531361. The reversal of 42531353 is 35313524.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30162064 + 12369289 = 5492^2 + 3517^2 .

It is a cyclic number.

It is not a de Polignac number, because 42531353 - 2⁴ = 42531337 is a prime.

It is a super-3 number, since 3×42531353³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42531373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16826 + ... + 19187.

It is an arithmetic number, because the mean of its divisors is an integer number (10642137).

Almost surely, 2^42531353 is an apocalyptic number.

It is an amenable number.

42531353 is a deficient number, since it is larger than the sum of its proper divisors (37195).

42531353 is a wasteful number, since it uses less digits than its factorization.

42531353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37194.

The product of its digits is 5400, while the sum is 26.

The square root of 42531353 is about 6521.6066272047. The cubic root of 42531353 is about 349.0623966509.

Adding to 42531353 its reverse (35313524), we get a palindrome (77844877).

The spelling of 42531353 in words is "forty-two million, five hundred thirty-one thousand, three hundred fifty-three".