5244506681 has 4 divisors (see below), whose sum is σ = 5553007092. Its totient is φ = 4936006272.

The previous prime is 5244506671. The next prime is 5244506689. The reversal of 5244506681 is 1866054425.

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 3446746681 + 1797760000 = 58709^2 + 42400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5244506681 is a prime.

It is a super-2 number, since 2×5244506681² = 55009700654107271522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5244506689) 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, 154250180 + ... + 154250213.

It is an arithmetic number, because the mean of its divisors is an integer number (1388251773).

Almost surely, 2^5244506681 is an apocalyptic number.

It is an amenable number.

5244506681 is a deficient number, since it is larger than the sum of its proper divisors (308500411).

5244506681 is a wasteful number, since it uses less digits than its factorization.

5244506681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308500410.

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 5244506681 is about 72418.9663071767. The cubic root of 5244506681 is about 1737.4069228542.

The spelling of 5244506681 in words is "five billion, two hundred forty-four million, five hundred six thousand, six hundred eighty-one".