5512647581 has 4 divisors (see below), whose sum is σ = 6300168672. Its totient is φ = 4725126492.

The previous prime is 5512647541. The next prime is 5512647599. The reversal of 5512647581 is 1857462155.

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 cyclic number.

It is not a de Polignac number, because 5512647581 - 2²² = 5508453277 is a prime.

It is a super-2 number, since 2×5512647581² = 60778566704610303122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5512647541) 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, 393760535 + ... + 393760548.

It is an arithmetic number, because the mean of its divisors is an integer number (1575042168).

Almost surely, 2^5512647581 is an apocalyptic number.

It is an amenable number.

5512647581 is a deficient number, since it is larger than the sum of its proper divisors (787521091).

5512647581 is an equidigital number, since it uses as much as digits as its factorization.

5512647581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787521090.

The product of its digits is 336000, while the sum is 44.

The square root of 5512647581 is about 74247.2058800868. The cubic root of 5512647581 is about 1766.5261732626.

The spelling of 5512647581 in words is "five billion, five hundred twelve million, six hundred forty-seven thousand, five hundred eighty-one".