51280698 has 16 divisors (see below), whose sum is σ = 117213120. Its totient is φ = 14651616.

The previous prime is 51280693. The next prime is 51280711. The reversal of 51280698 is 89608215.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51280693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610443 + ... + 610526.

It is an arithmetic number, because the mean of its divisors is an integer number (7325820).

Almost surely, 2^51280698 is an apocalyptic number.

51280698 is an abundant number, since it is smaller than the sum of its proper divisors (65932422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51280698 is a wasteful number, since it uses less digits than its factorization.

51280698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220981.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 51280698 is about 7161.0542519939. The cubic root of 51280698 is about 371.5220912300.

The spelling of 51280698 in words is "fifty-one million, two hundred eighty thousand, six hundred ninety-eight".