42533261 has 8 divisors (see below), whose sum is σ = 43697664. Its totient is φ = 41379760.

The previous prime is 42533251. The next prime is 42533273. The reversal of 42533261 is 16233524.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42533261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42533261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42533251) 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, 5516 + ... + 10746.

It is an arithmetic number, because the mean of its divisors is an integer number (5462208).

Almost surely, 2^42533261 is an apocalyptic number.

It is an amenable number.

42533261 is a deficient number, since it is larger than the sum of its proper divisors (1164403).

42533261 is a wasteful number, since it uses less digits than its factorization.

42533261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451.

The product of its digits is 4320, while the sum is 26.

The square root of 42533261 is about 6521.7529085362. The cubic root of 42533261 is about 349.0676163382.

Adding to 42533261 its reverse (16233524), we get a palindrome (58766785).

The spelling of 42533261 in words is "forty-two million, five hundred thirty-three thousand, two hundred sixty-one".