51106541 has 4 divisors (see below), whose sum is σ = 52353084. Its totient is φ = 49860000.

The previous prime is 51106511. The next prime is 51106543. The reversal of 51106541 is 14560115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14560115 = 5 ⋅2912023.

It can be written as a sum of positive squares in 2 ways, for example, as 17222500 + 33884041 = 4150^2 + 5821^2 .

It is a cyclic number.

It is not a de Polignac number, because 51106541 - 2¹⁸ = 50844397 is a prime.

It is a super-2 number, since 2×51106541² = 5223757065969362, which contains 22 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 (51106543) 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, 623210 + ... + 623291.

It is an arithmetic number, because the mean of its divisors is an integer number (13088271).

Almost surely, 2^51106541 is an apocalyptic number.

It is an amenable number.

51106541 is a deficient number, since it is larger than the sum of its proper divisors (1246543).

51106541 is a wasteful number, since it uses less digits than its factorization.

51106541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246542.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 51106541 is about 7148.8838989034. The cubic root of 51106541 is about 371.1010324878.

Adding to 51106541 its reverse (14560115), we get a palindrome (65666656).

The spelling of 51106541 in words is "fifty-one million, one hundred six thousand, five hundred forty-one".