51143077 has 4 divisors (see below), whose sum is σ = 51165760. Its totient is φ = 51120396.

The previous prime is 51143069. The next prime is 51143083. The reversal of 51143077 is 77034115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51143077 - 2³ = 51143069 is a prime.

It is a super-2 number, since 2×51143077² = 5231228650055858, which contains 22 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 (51143047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7533 + ... + 12610.

It is an arithmetic number, because the mean of its divisors is an integer number (12791440).

Almost surely, 2^51143077 is an apocalyptic number.

It is an amenable number.

51143077 is a deficient number, since it is larger than the sum of its proper divisors (22683).

51143077 is a wasteful number, since it uses less digits than its factorization.

51143077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22682.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 51143077 is about 7151.4388062823. The cubic root of 51143077 is about 371.1894446384.

It can be divided in two parts, 51 and 143077, that multiplied together give a palindrome (7296927).

The spelling of 51143077 in words is "fifty-one million, one hundred forty-three thousand, seventy-seven".