51680130 has 32 divisors (see below), whose sum is σ = 124533504. Its totient is φ = 13725696.

The previous prime is 51680129. The next prime is 51680137. The reversal of 51680130 is 3108615.

It is a self number, because there is not a number n which added to its sum of digits gives 51680130.

It is not an unprimeable number, because it can be changed into a prime (51680137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4359 + ... + 11061.

It is an arithmetic number, because the mean of its divisors is an integer number (3891672).

Almost surely, 2^51680130 is an apocalyptic number.

51680130 is an abundant number, since it is smaller than the sum of its proper divisors (72853374).

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

51680130 is a wasteful number, since it uses less digits than its factorization.

51680130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6970.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 51680130 is about 7188.8893439808. The cubic root of 51680130 is about 372.4842087506.

Adding to 51680130 its reverse (3108615), we get a palindrome (54788745).

The spelling of 51680130 in words is "fifty-one million, six hundred eighty thousand, one hundred thirty".