5520391013 has 4 divisors (see below), whose sum is σ = 5624549388. Its totient is φ = 5416232640.

The previous prime is 5520391007. The next prime is 5520391027. The reversal of 5520391013 is 3101930255.

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 3846108289 + 1674282724 = 62017^2 + 40918^2 .

It is a cyclic number.

It is not a de Polignac number, because 5520391013 - 2⁶ = 5520390949 is a prime.

It is a super-2 number, since 2×5520391013² = 60949433872822332338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5520391073) 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, 52079108 + ... + 52079213.

It is an arithmetic number, because the mean of its divisors is an integer number (1406137347).

Almost surely, 2^5520391013 is an apocalyptic number.

5520391013 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

5520391013 is a deficient number, since it is larger than the sum of its proper divisors (104158375).

5520391013 is a wasteful number, since it uses less digits than its factorization.

5520391013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104158374.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 5520391013 is about 74299.3338664621. Note that the first 3 decimals coincide. The cubic root of 5520391013 is about 1767.3529130636.

The spelling of 5520391013 in words is "five billion, five hundred twenty million, three hundred ninety-one thousand, thirteen".