5118551 has 4 divisors (see below), whose sum is σ = 5148312. Its totient is φ = 5088792.

The previous prime is 5118517. The next prime is 5118557. The reversal of 5118551 is 1558115.

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-5118551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5118551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5118557) 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, 14621 + ... + 14966.

It is an arithmetic number, because the mean of its divisors is an integer number (1287078).

Almost surely, 2^5118551 is an apocalyptic number.

5118551 is a deficient number, since it is larger than the sum of its proper divisors (29761).

5118551 is a wasteful number, since it uses less digits than its factorization.

5118551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29760.

The product of its digits is 1000, while the sum is 26.

The square root of 5118551 is about 2262.4214903505. The cubic root of 5118551 is about 172.3385144192.

The spelling of 5118551 in words is "five million, one hundred eighteen thousand, five hundred fifty-one".