5113551 has 4 divisors (see below), whose sum is σ = 6818072. Its totient is φ = 3409032.

The previous prime is 5113519. The next prime is 5113573. The reversal of 5113551 is 1553115.

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

It is not a de Polignac number, because 5113551 - 2⁵ = 5113519 is a prime.

It is a super-2 number, since 2×5113551² = 52296807659202, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5113051) 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, 852256 + ... + 852261.

It is an arithmetic number, because the mean of its divisors is an integer number (1704518).

Almost surely, 2^5113551 is an apocalyptic number.

5113551 is a deficient number, since it is larger than the sum of its proper divisors (1704521).

5113551 is a wasteful number, since it uses less digits than its factorization.

5113551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704520.

The product of its digits is 375, while the sum is 21.

The square root of 5113551 is about 2261.3162096443. The cubic root of 5113551 is about 172.2823804793.

Adding to 5113551 its reverse (1553115), we get a palindrome (6666666).

The spelling of 5113551 in words is "five million, one hundred thirteen thousand, five hundred fifty-one".