491932533 has 32 divisors (see below), whose sum is σ = 695255040. Its totient is φ = 308784960.

The previous prime is 491932499. The next prime is 491932541. The reversal of 491932533 is 335239194.

It is not a de Polignac number, because 491932533 - 2⁸ = 491932277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 491932491 and 491932500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491932433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2148063 + ... + 2148291.

It is an arithmetic number, because the mean of its divisors is an integer number (21726720).

Almost surely, 2^491932533 is an apocalyptic number.

It is an amenable number.

491932533 is a deficient number, since it is larger than the sum of its proper divisors (203322507).

491932533 is a wasteful number, since it uses less digits than its factorization.

491932533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609.

The product of its digits is 87480, while the sum is 39.

The square root of 491932533 is about 22179.5521370473. The cubic root of 491932533 is about 789.4085906445.

The spelling of 491932533 in words is "four hundred ninety-one million, nine hundred thirty-two thousand, five hundred thirty-three".