535542881 has 4 divisors (see below), whose sum is σ = 536334612. Its totient is φ = 534751152.

The previous prime is 535542877. The next prime is 535542893. The reversal of 535542881 is 188245535.

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 334158400 + 201384481 = 18280^2 + 14191^2 .

It is a cyclic number.

It is not a de Polignac number, because 535542881 - 2² = 535542877 is a prime.

It is a super-2 number, since 2×535542881² = 573612354779560322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (535542841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394850 + ... + 396203.

It is an arithmetic number, because the mean of its divisors is an integer number (134083653).

Almost surely, 2^535542881 is an apocalyptic number.

It is an amenable number.

535542881 is a deficient number, since it is larger than the sum of its proper divisors (791731).

535542881 is an equidigital number, since it uses as much as digits as its factorization.

535542881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791730.

The product of its digits is 192000, while the sum is 41.

The square root of 535542881 is about 23141.7994330605. The cubic root of 535542881 is about 812.0786326700.

The spelling of 535542881 in words is "five hundred thirty-five million, five hundred forty-two thousand, eight hundred eighty-one".