552775552781 has 4 divisors (see below), whose sum is σ = 555581520252. Its totient is φ = 549969585312.

The previous prime is 552775552649. The next prime is 552775552817. The reversal of 552775552781 is 187255577255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 349595482756 + 203180070025 = 591266^2 + 450755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-552775552781 is a prime.

It is a super-2 number, since 2×552775552781² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 552775552781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552775552481) 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, 1402983440 + ... + 1402983833.

It is an arithmetic number, because the mean of its divisors is an integer number (138895380063).

Almost surely, 2^552775552781 is an apocalyptic number.

It is an amenable number.

552775552781 is a deficient number, since it is larger than the sum of its proper divisors (2805967471).

552775552781 is a wasteful number, since it uses less digits than its factorization.

552775552781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805967470.

The product of its digits is 34300000, while the sum is 59.

The spelling of 552775552781 in words is "five hundred fifty-two billion, seven hundred seventy-five million, five hundred fifty-two thousand, seven hundred eighty-one".