552985861 has 8 divisors (see below), whose sum is σ = 583315200. Its totient is φ = 522779040.

The previous prime is 552985799. The next prime is 552985883. The reversal of 552985861 is 168589255.

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 552985861 - 2⁷ = 552985733 is a prime.

It is a super-2 number, since 2×552985861² = 611586724931822642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552985561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21280 + ... + 39481.

It is an arithmetic number, because the mean of its divisors is an integer number (72914400).

Almost surely, 2^552985861 is an apocalyptic number.

It is an amenable number.

552985861 is a deficient number, since it is larger than the sum of its proper divisors (30329339).

552985861 is a wasteful number, since it uses less digits than its factorization.

552985861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61259.

The product of its digits is 864000, while the sum is 49.

The square root of 552985861 is about 23515.6514049686. The cubic root of 552985861 is about 820.8012498326.

The spelling of 552985861 in words is "five hundred fifty-two million, nine hundred eighty-five thousand, eight hundred sixty-one".