559954981 has 8 divisors (see below), whose sum is σ = 566737560. Its totient is φ = 553183488.

The previous prime is 559954951. The next prime is 559954991. The reversal of 559954981 is 189459955.

It can be written as a sum of positive squares in 4 ways, for example, as 22410756 + 537544225 = 4734^2 + 23185^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 559954981 - 2⁹ = 559954469 is a prime.

It is a super-2 number, since 2×559954981² = 627099161493420722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (559954921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145575 + ... + 149371.

It is an arithmetic number, because the mean of its divisors is an integer number (70842195).

Almost surely, 2^559954981 is an apocalyptic number.

It is an amenable number.

559954981 is a deficient number, since it is larger than the sum of its proper divisors (6782579).

559954981 is a wasteful number, since it uses less digits than its factorization.

559954981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5543.

The product of its digits is 2916000, while the sum is 55.

The square root of 559954981 is about 23663.3679132959. The cubic root of 559954981 is about 824.2349717337.

The spelling of 559954981 in words is "five hundred fifty-nine million, nine hundred fifty-four thousand, nine hundred eighty-one".