51768734 has 4 divisors (see below), whose sum is σ = 77653104. Its totient is φ = 25884366.

The previous prime is 51768733. The next prime is 51768751. The reversal of 51768734 is 43786715.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 51768691 and 51768700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51768733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12942182 + ... + 12942185.

It is an arithmetic number, because the mean of its divisors is an integer number (19413276).

Almost surely, 2^51768734 is an apocalyptic number.

51768734 is a deficient number, since it is larger than the sum of its proper divisors (25884370).

51768734 is a wasteful number, since it uses less digits than its factorization.

51768734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25884369.

The product of its digits is 141120, while the sum is 41.

The square root of 51768734 is about 7195.0492701579. The cubic root of 51768734 is about 372.6969581352.

The spelling of 51768734 in words is "fifty-one million, seven hundred sixty-eight thousand, seven hundred thirty-four".