552691881 has 24 divisors (see below), whose sum is σ = 927850560. Its totient is φ = 310468896.

The previous prime is 552691859. The next prime is 552691933. The reversal of 552691881 is 188196255.

It is a happy number.

552691881 is a `hidden beast` number, since 552 + 6 + 9 + 18 + 81 = 666.

It is not a de Polignac number, because 552691881 - 2¹⁰ = 552690857 is a prime.

It is a super-2 number, since 2×552691881² = 610936630646636322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (552691801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70630 + ... + 78063.

It is an arithmetic number, because the mean of its divisors is an integer number (38660440).

Almost surely, 2^552691881 is an apocalyptic number.

It is an amenable number.

552691881 is a deficient number, since it is larger than the sum of its proper divisors (375158679).

552691881 is a wasteful number, since it uses less digits than its factorization.

552691881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148765 (or 148762 counting only the distinct ones).

The product of its digits is 172800, while the sum is 45.

The square root of 552691881 is about 23509.3998434669. The cubic root of 552691881 is about 820.6557717767.

The spelling of 552691881 in words is "five hundred fifty-two million, six hundred ninety-one thousand, eight hundred eighty-one".