5492551681 has 8 divisors (see below), whose sum is σ = 5549074344. Its totient is φ = 5436318720.

The previous prime is 5492551679. The next prime is 5492551699. The reversal of 5492551681 is 1861552945.

It can be written as a sum of positive squares in 4 ways, for example, as 2218881025 + 3273670656 = 47105^2 + 57216^2 .

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 5492551681 - 2¹ = 5492551679 is a prime.

It is a super-2 number, since 2×5492551681² = 60336247936911851522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5492551651) 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, 34210 + ... + 110251.

It is an arithmetic number, because the mean of its divisors is an integer number (693634293).

Almost surely, 2^5492551681 is an apocalyptic number.

It is an amenable number.

5492551681 is a deficient number, since it is larger than the sum of its proper divisors (56522663).

5492551681 is a wasteful number, since it uses less digits than its factorization.

5492551681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144851.

The product of its digits is 432000, while the sum is 46.

The square root of 5492551681 is about 74111.7513016661. The cubic root of 5492551681 is about 1764.3769846477.

The spelling of 5492551681 in words is "five billion, four hundred ninety-two million, five hundred fifty-one thousand, six hundred eighty-one".