51707064 has 32 divisors (see below), whose sum is σ = 136872720. Its totient is φ = 16221696.

The previous prime is 51707063. The next prime is 51707107. The reversal of 51707064 is 46070715.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51707063) 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, 62959 + ... + 63774.

Almost surely, 2^51707064 is an apocalyptic number.

It is an amenable number.

51707064 is an abundant number, since it is smaller than the sum of its proper divisors (85165656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51707064 is a wasteful number, since it uses less digits than its factorization.

51707064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126759 (or 126755 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 51707064 is about 7190.7624074225. The cubic root of 51707064 is about 372.5489063904.

Adding to 51707064 its reverse (46070715), we get a palindrome (97777779).

The spelling of 51707064 in words is "fifty-one million, seven hundred seven thousand, sixty-four".