51411020 has 48 divisors (see below), whose sum is σ = 112686336. Its totient is φ = 19680000.

The previous prime is 51410999. The next prime is 51411023. The reversal of 51411020 is 2011415.

It is a junction number, because it is equal to n+sod(n) for n = 51410986 and 51411004.

It is not an unprimeable number, because it can be changed into a prime (51411023) 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, 62210 + ... + 63030.

It is an arithmetic number, because the mean of its divisors is an integer number (2347632).

Almost surely, 2^51411020 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 51411020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56343168).

51411020 is an abundant number, since it is smaller than the sum of its proper divisors (61275316).

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

51411020 is a wasteful number, since it uses less digits than its factorization.

51411020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 51411020 is about 7170.1478366907. The cubic root of 51411020 is about 371.8365470679.

Adding to 51411020 its reverse (2011415), we get a palindrome (53422435).

The spelling of 51411020 in words is "fifty-one million, four hundred eleven thousand, twenty".