51230316 has 48 divisors (see below), whose sum is σ = 127806336. Its totient is φ = 15915264.

The previous prime is 51230303. The next prime is 51230323. The reversal of 51230316 is 61303215.

It is a junction number, because it is equal to n+sod(n) for n = 51230292 and 51230301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20655 + ... + 23001.

It is an arithmetic number, because the mean of its divisors is an integer number (2662632).

Almost surely, 2^51230316 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 51230316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63903168).

51230316 is an abundant number, since it is smaller than the sum of its proper divisors (76576020).

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

51230316 is a wasteful number, since it uses less digits than its factorization.

51230316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478 (or 2476 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 51230316 is about 7157.5356094119. The cubic root of 51230316 is about 371.4003809825.

It can be divided in two parts, 5 and 1230316, that added together give a palindrome (1230321).

The spelling of 51230316 in words is "fifty-one million, two hundred thirty thousand, three hundred sixteen".