51112250 has 32 divisors (see below), whose sum is σ = 109354752. Its totient is φ = 17523600.

The previous prime is 51112247. The next prime is 51112277. The reversal of 51112250 is 5221115.

It is a super-2 number, since 2×51112250² = 5224924200125000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12854 + ... + 16353.

It is an arithmetic number, because the mean of its divisors is an integer number (3417336).

Almost surely, 2^51112250 is an apocalyptic number.

51112250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51112250 is an abundant number, since it is smaller than the sum of its proper divisors (58242502).

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

51112250 is a wasteful number, since it uses less digits than its factorization.

51112250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29231 (or 29221 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 51112250 is about 7149.2831808511. The cubic root of 51112250 is about 371.1148502684.

Adding to 51112250 its reverse (5221115), we get a palindrome (56333365).

The spelling of 51112250 in words is "fifty-one million, one hundred twelve thousand, two hundred fifty".