552506881 has 4 divisors (see below), whose sum is σ = 552614832. Its totient is φ = 552398932.

The previous prime is 552506879. The next prime is 552506887. The reversal of 552506881 is 188605255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 188605255 = 5 ⋅37721051.

It is a cyclic number.

It is not a de Polignac number, because 552506881 - 2¹ = 552506879 is a prime.

It is a super-2 number, since 2×552506881² = 610527707104696322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552506887) 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, 45895 + ... + 56668.

It is an arithmetic number, because the mean of its divisors is an integer number (138153708).

Almost surely, 2^552506881 is an apocalyptic number.

It is an amenable number.

552506881 is a deficient number, since it is larger than the sum of its proper divisors (107951).

552506881 is a wasteful number, since it uses less digits than its factorization.

552506881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107950.

The product of its (nonzero) digits is 96000, while the sum is 40.

The square root of 552506881 is about 23505.4649177590. The cubic root of 552506881 is about 820.5641967867.

The spelling of 552506881 in words is "five hundred fifty-two million, five hundred six thousand, eight hundred eighty-one".