51303380 has 24 divisors (see below), whose sum is σ = 108229632. Its totient is φ = 20427552.

The previous prime is 51303359. The next prime is 51303383. The reversal of 51303380 is 8330315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51303383) 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, 1292 + ... + 10211.

It is an arithmetic number, because the mean of its divisors is an integer number (4509568).

Almost surely, 2^51303380 is an apocalyptic number.

It is an amenable number.

51303380 is an abundant number, since it is smaller than the sum of its proper divisors (56926252).

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

51303380 is a wasteful number, since it uses less digits than its factorization.

51303380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11735 (or 11733 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 51303380 is about 7162.6377822699. The cubic root of 51303380 is about 371.5768592180.

Adding to 51303380 its reverse (8330315), we get a palindrome (59633695).

The spelling of 51303380 in words is "fifty-one million, three hundred three thousand, three hundred eighty".