5515622513 has 4 divisors (see below), whose sum is σ = 5643892848. Its totient is φ = 5387352180.

The previous prime is 5515622471. The next prime is 5515622531. The reversal of 5515622513 is 3152265155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-5515622513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515622533) 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, 64135103 + ... + 64135188.

It is an arithmetic number, because the mean of its divisors is an integer number (1410973212).

Almost surely, 2^5515622513 is an apocalyptic number.

It is an amenable number.

5515622513 is a deficient number, since it is larger than the sum of its proper divisors (128270335).

5515622513 is a wasteful number, since it uses less digits than its factorization.

5515622513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128270334.

The product of its digits is 45000, while the sum is 35.

The square root of 5515622513 is about 74267.2371439789. The cubic root of 5515622513 is about 1766.8438881233.

Adding to 5515622513 its reverse (3152265155), we get a palindrome (8667887668).

The spelling of 5515622513 in words is "five billion, five hundred fifteen million, six hundred twenty-two thousand, five hundred thirteen".