51373250 has 16 divisors (see below), whose sum is σ = 96171192. Its totient is φ = 20549200.

The previous prime is 51373213. The next prime is 51373253. The reversal of 51373250 is 5237315.

51373250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10374841 + 40998409 = 3221^2 + 6403^2 .

It is not an unprimeable number, because it can be changed into a prime (51373253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102497 + ... + 102996.

Almost surely, 2^51373250 is an apocalyptic number.

51373250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51373250 is a deficient number, since it is larger than the sum of its proper divisors (44797942).

51373250 is a wasteful number, since it uses less digits than its factorization.

51373250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205510 (or 205500 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 51373250 is about 7167.5135158575. The cubic root of 51373250 is about 371.7454660307.

The spelling of 51373250 in words is "fifty-one million, three hundred seventy-three thousand, two hundred fifty".