51798698 has 16 divisors (see below), whose sum is σ = 91860480. Its totient is φ = 21433776.

The previous prime is 51798671. The next prime is 51798701. The reversal of 51798698 is 89689715.

It is a super-3 number, since 3×51798698³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63386 + ... + 64197.

It is an arithmetic number, because the mean of its divisors is an integer number (5741280).

Almost surely, 2^51798698 is an apocalyptic number.

51798698 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

51798698 is a deficient number, since it is larger than the sum of its proper divisors (40061782).

51798698 is a wasteful number, since it uses less digits than its factorization.

51798698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127621.

The product of its digits is 1088640, while the sum is 53.

The square root of 51798698 is about 7197.1312340404. The cubic root of 51798698 is about 372.7688505490.

The spelling of 51798698 in words is "fifty-one million, seven hundred ninety-eight thousand, six hundred ninety-eight".