51143577 has 8 divisors (see below), whose sum is σ = 68300064. Its totient is φ = 34041408.

The previous prime is 51143557. The next prime is 51143593. The reversal of 51143577 is 77534115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51143577 - 2¹² = 51139481 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (51143557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11328 + ... + 15185.

It is an arithmetic number, because the mean of its divisors is an integer number (8537508).

Almost surely, 2^51143577 is an apocalyptic number.

It is an amenable number.

51143577 is a deficient number, since it is larger than the sum of its proper divisors (17156487).

51143577 is a wasteful number, since it uses less digits than its factorization.

51143577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27159.

The product of its digits is 14700, while the sum is 33.

The square root of 51143577 is about 7151.4737641971. The cubic root of 51143577 is about 371.1906542783.

The spelling of 51143577 in words is "fifty-one million, one hundred forty-three thousand, five hundred seventy-seven".