51298250 has 32 divisors (see below), whose sum is σ = 96454800. Its totient is φ = 20428800.

The previous prime is 51298241. The next prime is 51298253. The reversal of 51298250 is 5289215.

It can be written as a sum of positive squares in 8 ways, for example, as 9320809 + 41977441 = 3053^2 + 6479^2 .

It is not an unprimeable number, because it can be changed into a prime (51298253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112022 + ... + 112478.

Almost surely, 2^51298250 is an apocalyptic number.

51298250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51298250 is a deficient number, since it is larger than the sum of its proper divisors (45156550).

51298250 is a wasteful number, since it uses less digits than its factorization.

51298250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 51298250 is about 7162.2796650229. The cubic root of 51298250 is about 371.5644737258.

The spelling of 51298250 in words is "fifty-one million, two hundred ninety-eight thousand, two hundred fifty".