51894250 has 32 divisors (see below), whose sum is σ = 97651008. Its totient is φ = 20650000.

The previous prime is 51894229. The next prime is 51894257. The reversal of 51894250 is 5249815.

It is not an unprimeable number, because it can be changed into a prime (51894257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62337 + ... + 63163.

It is an arithmetic number, because the mean of its divisors is an integer number (3051594).

Almost surely, 2^51894250 is an apocalyptic number.

51894250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51894250 is a deficient number, since it is larger than the sum of its proper divisors (45756758).

51894250 is a wasteful number, since it uses less digits than its factorization.

51894250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 51894250 is about 7203.7663760008. The cubic root of 51894250 is about 372.9979227795.

The spelling of 51894250 in words is "fifty-one million, eight hundred ninety-four thousand, two hundred fifty".