51875290 has 8 divisors (see below), whose sum is σ = 93375540. Its totient is φ = 20750112.

The previous prime is 51875237. The next prime is 51875293. The reversal of 51875290 is 9257815.

It can be written as a sum of positive squares in 2 ways, for example, as 46799281 + 5076009 = 6841^2 + 2253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51875293) 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, 2593755 + ... + 2593774.

Almost surely, 2^51875290 is an apocalyptic number.

51875290 is a deficient number, since it is larger than the sum of its proper divisors (41500250).

51875290 is a wasteful number, since it uses less digits than its factorization.

51875290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187536.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 51875290 is about 7202.4502775097. The cubic root of 51875290 is about 372.9524912717.

The spelling of 51875290 in words is "fifty-one million, eight hundred seventy-five thousand, two hundred ninety".