5618006557 has 4 divisors (see below), whose sum is σ = 5618180896. Its totient is φ = 5617832220.

The previous prime is 5618006533. The next prime is 5618006593. The reversal of 5618006557 is 7556008165.

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 a de Polignac number, because none of the positive numbers 2^k-5618006557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5618006057) 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, 23169 + ... + 108502.

It is an arithmetic number, because the mean of its divisors is an integer number (1404545224).

Almost surely, 2^5618006557 is an apocalyptic number.

It is an amenable number.

5618006557 is a deficient number, since it is larger than the sum of its proper divisors (174339).

5618006557 is a wasteful number, since it uses less digits than its factorization.

5618006557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174338.

The product of its (nonzero) digits is 252000, while the sum is 43.

The square root of 5618006557 is about 74953.3625463194. The cubic root of 5618006557 is about 1777.7093116070.

The spelling of 5618006557 in words is "five billion, six hundred eighteen million, six thousand, five hundred fifty-seven".