51122080 has 48 divisors (see below), whose sum is σ = 123737544. Its totient is φ = 19947520.

The previous prime is 51122063. The next prime is 51122117. The reversal of 51122080 is 8022115.

It can be written as a sum of positive squares in 4 ways, for example, as 42146064 + 8976016 = 6492^2 + 2996^2 .

It is a super-2 number, since 2×51122080² = 5226934127052800, which contains 22 as substring.

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, 2664 + ... + 10456.

Almost surely, 2^51122080 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 51122080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61868772).

51122080 is an abundant number, since it is smaller than the sum of its proper divisors (72615464).

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

51122080 is a wasteful number, since it uses less digits than its factorization.

51122080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849 (or 7841 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 51122080 is about 7149.9706293103. The cubic root of 51122080 is about 371.1386399022.

Adding to 51122080 its reverse (8022115), we get a palindrome (59144195).

The spelling of 51122080 in words is "fifty-one million, one hundred twenty-two thousand, eighty".