5513151 has 16 divisors (see below), whose sum is σ = 8895744. Its totient is φ = 2964864.

The previous prime is 5513143. The next prime is 5513191. The reversal of 5513151 is 1513155.

It is not a de Polignac number, because 5513151 - 2³ = 5513143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

5513151 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5513191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7365 + ... + 8078.

It is an arithmetic number, because the mean of its divisors is an integer number (555984).

Almost surely, 2^5513151 is an apocalyptic number.

5513151 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5513151 is a deficient number, since it is larger than the sum of its proper divisors (3382593).

5513151 is a wasteful number, since it uses less digits than its factorization.

5513151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15470.

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

The square root of 5513151 is about 2348.0100084966. The cubic root of 5513151 is about 176.6579945112.

The spelling of 5513151 in words is "five million, five hundred thirteen thousand, one hundred fifty-one".