552742956981 has 12 divisors (see below), whose sum is σ = 798464708652. Its totient is φ = 368468436096.

The previous prime is 552742956949. The next prime is 552742957007. The reversal of 552742956981 is 189659247255.

552742956981 is a `hidden beast` number, since 5 + 5 + 27 + 42 + 9 + 569 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 127170692100 + 425572264881 = 356610^2 + 652359^2 .

It is not a de Polignac number, because 552742956981 - 2⁵ = 552742956949 is a prime.

It is a super-2 number, since 2×552742956981² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552742956581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2108356 + ... + 2355981.

It is an arithmetic number, because the mean of its divisors is an integer number (66538725721).

Almost surely, 2^552742956981 is an apocalyptic number.

It is an amenable number.

552742956981 is a deficient number, since it is larger than the sum of its proper divisors (245721751671).

552742956981 is a wasteful number, since it uses less digits than its factorization.

552742956981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478100 (or 4478097 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 63.

The spelling of 552742956981 in words is "five hundred fifty-two billion, seven hundred forty-two million, nine hundred fifty-six thousand, nine hundred eighty-one".