533860681 has 4 divisors (see below), whose sum is σ = 552269700. Its totient is φ = 515451664.

The previous prime is 533860669. The next prime is 533860687. The reversal of 533860681 is 186068335.

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 176650681 + 357210000 = 13291^2 + 18900^2 .

It is a cyclic number.

It is not a de Polignac number, because 533860681 - 2⁷ = 533860553 is a prime.

It is a super-2 number, since 2×533860681² = 570014453435567522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (533860687) 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, 9204466 + ... + 9204523.

It is an arithmetic number, because the mean of its divisors is an integer number (138067425).

Almost surely, 2^533860681 is an apocalyptic number.

It is an amenable number.

533860681 is a deficient number, since it is larger than the sum of its proper divisors (18409019).

533860681 is a wasteful number, since it uses less digits than its factorization.

533860681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18409018.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 533860681 is about 23105.4253585603. The cubic root of 533860681 is about 811.2274642819.

The spelling of 533860681 in words is "five hundred thirty-three million, eight hundred sixty thousand, six hundred eighty-one".