553529979281 has 4 divisors (see below), whose sum is σ = 553531817652. Its totient is φ = 553528140912.

The previous prime is 553529979263. The next prime is 553529979283. The reversal of 553529979281 is 182979925355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 182979925355 = 5 ⋅36595985071.

It can be written as a sum of positive squares in 2 ways, for example, as 504396823681 + 49133155600 = 710209^2 + 221660^2 .

It is a cyclic number.

It is not a de Polignac number, because 553529979281 - 2¹⁴ = 553529962897 is a prime.

It is a super-2 number, since 2×553529979281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553529979283) 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, 350090 + ... + 1108883.

It is an arithmetic number, because the mean of its divisors is an integer number (138382954413).

Almost surely, 2^553529979281 is an apocalyptic number.

It is an amenable number.

553529979281 is a deficient number, since it is larger than the sum of its proper divisors (1838371).

553529979281 is a wasteful number, since it uses less digits than its factorization.

553529979281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838370.

The product of its digits is 61236000, while the sum is 65.

The spelling of 553529979281 in words is "five hundred fifty-three billion, five hundred twenty-nine million, nine hundred seventy-nine thousand, two hundred eighty-one".