5515574731 has 4 divisors (see below), whose sum is σ = 5755382352. Its totient is φ = 5275767112.

The previous prime is 5515574717. The next prime is 5515574773. The reversal of 5515574731 is 1374755155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5515574731 is a prime.

It is a super-2 number, since 2×5515574731² = 60843129226491444722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515574791) 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, 119903776 + ... + 119903821.

It is an arithmetic number, because the mean of its divisors is an integer number (1438845588).

Almost surely, 2^5515574731 is an apocalyptic number.

5515574731 is a deficient number, since it is larger than the sum of its proper divisors (239807621).

5515574731 is a wasteful number, since it uses less digits than its factorization.

5515574731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239807620.

The product of its digits is 367500, while the sum is 43.

The square root of 5515574731 is about 74266.9154536527. The cubic root of 5515574731 is about 1766.8387860350.

The spelling of 5515574731 in words is "five billion, five hundred fifteen million, five hundred seventy-four thousand, seven hundred thirty-one".