51350245543 has 16 divisors (see below), whose sum is σ = 54517432320. Its totient is φ = 48199536000.

The previous prime is 51350245493. The next prime is 51350245561. The reversal of 51350245543 is 34554205315.

It is a cyclic number.

It is not a de Polignac number, because 51350245543 - 2³³ = 42760310951 is a prime.

It is a super-3 number, since 3×51350245543³ (a number of 33 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 (51350245043) 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, 12344698 + ... + 12348856.

It is an arithmetic number, because the mean of its divisors is an integer number (3407339520).

Almost surely, 2^51350245543 is an apocalyptic number.

51350245543 is a deficient number, since it is larger than the sum of its proper divisors (3167186777).

51350245543 is a wasteful number, since it uses less digits than its factorization.

51350245543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 51350245543 in words is "fifty-one billion, three hundred fifty million, two hundred forty-five thousand, five hundred forty-three".