51185343 has 16 divisors (see below), whose sum is σ = 76269312. Its totient is φ = 30264000.

The previous prime is 51185341. The next prime is 51185359. The reversal of 51185343 is 34358115.

It is not a de Polignac number, because 51185343 - 2¹ = 51185341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51185343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51185341) 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, 17563 + ... + 20268.

It is an arithmetic number, because the mean of its divisors is an integer number (4766832).

Almost surely, 2^51185343 is an apocalyptic number.

51185343 is a deficient number, since it is larger than the sum of its proper divisors (25083969).

51185343 is a wasteful number, since it uses less digits than its factorization.

51185343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37886.

The product of its digits is 7200, while the sum is 30.

The square root of 51185343 is about 7154.3932656795. The cubic root of 51185343 is about 371.2916700951.

The spelling of 51185343 in words is "fifty-one million, one hundred eighty-five thousand, three hundred forty-three".