5135551 has 4 divisors (see below), whose sum is σ = 5140152. Its totient is φ = 5130952.

The previous prime is 5135539. The next prime is 5135569. The reversal of 5135551 is 1555315.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5135551 - 2⁷ = 5135423 is a prime.

It is a super-3 number, since 3×5135551³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5135521) 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, 561 + ... + 3253.

It is an arithmetic number, because the mean of its divisors is an integer number (1285038).

Almost surely, 2^5135551 is an apocalyptic number.

5135551 is a deficient number, since it is larger than the sum of its proper divisors (4601).

5135551 is a wasteful number, since it uses less digits than its factorization.

5135551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4600.

The product of its digits is 1875, while the sum is 25.

The square root of 5135551 is about 2266.1754124516. The cubic root of 5135551 is about 172.5290968211.

The spelling of 5135551 in words is "five million, one hundred thirty-five thousand, five hundred fifty-one".