5155541 has 4 divisors (see below), whose sum is σ = 5160300. Its totient is φ = 5150784.

The previous prime is 5155511. The next prime is 5155547. The reversal of 5155541 is 1455515.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1455515 = 5 ⋅291103.

It can be written as a sum of positive squares in 2 ways, for example, as 3880900 + 1274641 = 1970^2 + 1129^2 .

It is a cyclic number.

It is not a de Polignac number, because 5155541 - 2¹⁸ = 4893397 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5155541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155547) 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, 125 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (1290075).

Almost surely, 2^5155541 is an apocalyptic number.

It is an amenable number.

5155541 is a deficient number, since it is larger than the sum of its proper divisors (4759).

5155541 is a wasteful number, since it uses less digits than its factorization.

5155541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758.

The product of its digits is 2500, while the sum is 26.

The square root of 5155541 is about 2270.5816435442. The cubic root of 5155541 is about 172.7526620195.

Subtracting from 5155541 its sum of digits (26), we obtain a palindrome (5155515).

The spelling of 5155541 in words is "five million, one hundred fifty-five thousand, five hundred forty-one".