42533671 has 4 divisors (see below), whose sum is σ = 42721272. Its totient is φ = 42346072.

The previous prime is 42533657. The next prime is 42533681. The reversal of 42533671 is 17633524.

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

It is a cyclic number.

It is not a de Polignac number, because 42533671 - 2⁵ = 42533639 is a prime.

It is a super-2 number, since 2×42533671² = 3618226337472482, which contains 22 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 (42533611) 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, 93460 + ... + 93913.

It is an arithmetic number, because the mean of its divisors is an integer number (10680318).

Almost surely, 2^42533671 is an apocalyptic number.

42533671 is a deficient number, since it is larger than the sum of its proper divisors (187601).

42533671 is a wasteful number, since it uses less digits than its factorization.

42533671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187600.

The product of its digits is 15120, while the sum is 31.

The square root of 42533671 is about 6521.7843417273. The cubic root of 42533671 is about 349.0687379488.

The spelling of 42533671 in words is "forty-two million, five hundred thirty-three thousand, six hundred seventy-one".