5515131 has 4 divisors (see below), whose sum is σ = 7353512. Its totient is φ = 3676752.

The previous prime is 5515099. The next prime is 5515141. The reversal of 5515131 is 1315155.

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

It is not a de Polignac number, because 5515131 - 2⁵ = 5515099 is a prime.

It is a super-2 number, since 2×5515131² = 60833339894322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5515098 and 5515107.

It is not an unprimeable number, because it can be changed into a prime (5515141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919186 + ... + 919191.

It is an arithmetic number, because the mean of its divisors is an integer number (1838378).

Almost surely, 2^5515131 is an apocalyptic number.

5515131 is a deficient number, since it is larger than the sum of its proper divisors (1838381).

5515131 is a wasteful number, since it uses less digits than its factorization.

5515131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838380.

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

The square root of 5515131 is about 2348.4316042840. The cubic root of 5515131 is about 176.6791403716.

The spelling of 5515131 in words is "five million, five hundred fifteen thousand, one hundred thirty-one".