51672543 has 16 divisors (see below), whose sum is σ = 74346720. Its totient is φ = 31734144.

The previous prime is 51672529. The next prime is 51672581. The reversal of 51672543 is 34527615.

It is not a de Polignac number, because 51672543 - 2⁹ = 51672031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51670543) 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, 24453 + ... + 26481.

It is an arithmetic number, because the mean of its divisors is an integer number (4646670).

Almost surely, 2^51672543 is an apocalyptic number.

51672543 is a deficient number, since it is larger than the sum of its proper divisors (22674177).

51672543 is a wasteful number, since it uses less digits than its factorization.

51672543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698.

The product of its digits is 25200, while the sum is 33.

The square root of 51672543 is about 7188.3616353102. The cubic root of 51672543 is about 372.4659801071.

The spelling of 51672543 in words is "fifty-one million, six hundred seventy-two thousand, five hundred forty-three".