51114220 has 12 divisors (see below), whose sum is σ = 107339904. Its totient is φ = 20445680.

The previous prime is 51114209. The next prime is 51114227. The reversal of 51114220 is 2241115.

It is a super-2 number, since 2×51114220² = 5225326972416800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51114194 and 51114203.

It is not an unprimeable number, because it can be changed into a prime (51114227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277836 + ... + 1277875.

It is an arithmetic number, because the mean of its divisors is an integer number (8944992).

Almost surely, 2^51114220 is an apocalyptic number.

It is an amenable number.

51114220 is an abundant number, since it is smaller than the sum of its proper divisors (56225684).

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

51114220 is a wasteful number, since it uses less digits than its factorization.

51114220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555720 (or 2555718 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 51114220 is about 7149.4209555740. The cubic root of 51114220 is about 371.1196181199.

Adding to 51114220 its reverse (2241115), we get a palindrome (53355335).

The spelling of 51114220 in words is "fifty-one million, one hundred fourteen thousand, two hundred twenty".