51020032 has 72 divisors (see below), whose sum is σ = 118323072. Its totient is φ = 21504000.

The previous prime is 51020029. The next prime is 51020041. The reversal of 51020032 is 23002015.

It is a junction number, because it is equal to n+sod(n) for n = 51019994 and 51020021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127032 + ... + 127432.

It is an arithmetic number, because the mean of its divisors is an integer number (1643376).

Almost surely, 2^51020032 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 51020032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59161536).

51020032 is an abundant number, since it is smaller than the sum of its proper divisors (67303040).

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

51020032 is an equidigital number, since it uses as much as digits as its factorization.

51020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 51020032 is about 7142.8308113800. The cubic root of 51020032 is about 370.8915243390.

Adding to 51020032 its reverse (23002015), we get a palindrome (74022047).

The spelling of 51020032 in words is "fifty-one million, twenty thousand, thirty-two".