51290 has 16 divisors (see below), whose sum is σ = 96768. Its totient is φ = 19536.

The previous prime is 51287. The next prime is 51307. The reversal of 51290 is 9215.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119 + ... + 341.

It is an arithmetic number, because the mean of its divisors is an integer number (6048).

2⁵¹²⁹⁰ is an apocalyptic number.

51290 is a deficient number, since it is larger than the sum of its proper divisors (45478).

51290 is a wasteful number, since it uses less digits than its factorization.

51290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 51290 is about 226.4729564429. The cubic root of 51290 is about 37.1544553805.

The spelling of 51290 in words is "fifty-one thousand, two hundred ninety".