51190543 has 4 divisors (see below), whose sum is σ = 51416280. Its totient is φ = 50964808.

The previous prime is 51190507. The next prime is 51190547. The reversal of 51190543 is 34509115.

51190543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34509115 = 5 ⋅6901823.

It is a cyclic number.

It is not a de Polignac number, because 51190543 - 2²¹ = 49093391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51190547) 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, 112528 + ... + 112981.

It is an arithmetic number, because the mean of its divisors is an integer number (12854070).

Almost surely, 2^51190543 is an apocalyptic number.

51190543 is a deficient number, since it is larger than the sum of its proper divisors (225737).

51190543 is a wasteful number, since it uses less digits than its factorization.

51190543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225736.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 51190543 is about 7154.7566695171. The cubic root of 51190543 is about 371.3042430388.

Adding to 51190543 its reverse (34509115), we get a palindrome (85699658).

The spelling of 51190543 in words is "fifty-one million, one hundred ninety thousand, five hundred forty-three".