51707434 has 4 divisors (see below), whose sum is σ = 77561154. Its totient is φ = 25853716.

The previous prime is 51707431. The next prime is 51707459. The reversal of 51707434 is 43470715.

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

It can be written as a sum of positive squares in only one way, i.e., 29192409 + 22515025 = 5403^2 + 4745^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51707396 and 51707405.

It is not an unprimeable number, because it can be changed into a prime (51707431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12926857 + ... + 12926860.

Almost surely, 2^51707434 is an apocalyptic number.

51707434 is a deficient number, since it is larger than the sum of its proper divisors (25853720).

51707434 is a wasteful number, since it uses less digits than its factorization.

51707434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25853719.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 51707434 is about 7190.7881348292. The cubic root of 51707434 is about 372.5497950038.

The spelling of 51707434 in words is "fifty-one million, seven hundred seven thousand, four hundred thirty-four".