51707700 has 144 divisors (see below), whose sum is σ = 181446720. Its totient is φ = 12528000.

The previous prime is 51707699. The next prime is 51707707. The reversal of 51707700 is 770715.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51707707) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28830 + ... + 30570.

Almost surely, 2^51707700 is an apocalyptic number.

51707700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51707700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90723360).

51707700 is an abundant number, since it is smaller than the sum of its proper divisors (129739020).

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

51707700 is a wasteful number, since it uses less digits than its factorization.

51707700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 1715, while the sum is 27.

The square root of 51707700 is about 7190.8066306917. The cubic root of 51707700 is about 372.5504338422.

The spelling of 51707700 in words is "fifty-one million, seven hundred seven thousand, seven hundred".