51098 has 8 divisors (see below), whose sum is σ = 79380. Its totient is φ = 24640.

The previous prime is 51071. The next prime is 51109. The reversal of 51098 is 89015.

It can be written as a sum of positive squares in 2 ways, for example, as 49729 + 1369 = 223^2 + 37^2 .

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

It is a super-2 number, since 2×51098² = 5222011208, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383 + ... + 498.

2⁵¹⁰⁹⁸ is an apocalyptic number.

51098 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

51098 is a deficient number, since it is larger than the sum of its proper divisors (28282).

51098 is a wasteful number, since it uses less digits than its factorization.

51098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 51098 is about 226.0486673263. The cubic root of 51098 is about 37.1080358353.

The spelling of 51098 in words is "fifty-one thousand, ninety-eight".