534663561 has 8 divisors (see below), whose sum is σ = 715843744. Its totient is φ = 354962880.

The previous prime is 534663559. The next prime is 534663581. The reversal of 534663561 is 165366435.

It is a happy number.

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

It is not a de Polignac number, because 534663561 - 2¹ = 534663559 is a prime.

It is a super-2 number, since 2×534663561² = 571730246922401442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (534663511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369031 + ... + 370476.

It is an arithmetic number, because the mean of its divisors is an integer number (89480468).

Almost surely, 2^534663561 is an apocalyptic number.

It is an amenable number.

534663561 is a deficient number, since it is larger than the sum of its proper divisors (181180183).

534663561 is a wasteful number, since it uses less digits than its factorization.

534663561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739751.

The product of its digits is 194400, while the sum is 39.

The square root of 534663561 is about 23122.7931055052. The cubic root of 534663561 is about 811.6339324196.

The spelling of 534663561 in words is "five hundred thirty-four million, six hundred sixty-three thousand, five hundred sixty-one".