51710340 has 96 divisors (see below), whose sum is σ = 161409024. Its totient is φ = 12261760.

The previous prime is 51710339. The next prime is 51710341. The reversal of 51710340 is 4301715.

It is an interprime number because it is at equal distance from previous prime (51710339) and next prime (51710341).

It is not an unprimeable number, because it can be changed into a prime (51710341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30187 + ... + 31853.

It is an arithmetic number, because the mean of its divisors is an integer number (1681344).

Almost surely, 2^51710340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51710340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80704512).

51710340 is an abundant number, since it is smaller than the sum of its proper divisors (109698684).

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

51710340 is a wasteful number, since it uses less digits than its factorization.

51710340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737 (or 1735 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 51710340 is about 7190.9901960717. The cubic root of 51710340 is about 372.5567740739.

The spelling of 51710340 in words is "fifty-one million, seven hundred ten thousand, three hundred forty".