5030661281 has 4 divisors (see below), whose sum is σ = 5032188564. Its totient is φ = 5029134000.

The previous prime is 5030661263. The next prime is 5030661313. The reversal of 5030661281 is 1821660305.

It is a happy number.

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 3530261056 + 1500400225 = 59416^2 + 38735^2 .

It is a cyclic number.

It is not a de Polignac number, because 5030661281 - 2¹⁴ = 5030644897 is a prime.

It is a super-2 number, since 2×5030661281² = 50615105848305121922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5030661211) 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 3 ways as a sum of consecutive naturals, for example, 758690 + ... + 765291.

It is an arithmetic number, because the mean of its divisors is an integer number (1258047141).

Almost surely, 2^5030661281 is an apocalyptic number.

It is an amenable number.

5030661281 is a deficient number, since it is larger than the sum of its proper divisors (1527283).

5030661281 is a wasteful number, since it uses less digits than its factorization.

5030661281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527282.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 5030661281 is about 70927.1547504903. The cubic root of 5030661281 is about 1713.4641630184.

The spelling of 5030661281 in words is "five billion, thirty million, six hundred sixty-one thousand, two hundred eighty-one".