51698360 has 64 divisors (see below), whose sum is σ = 140771520. Its totient is φ = 16680960.

The previous prime is 51698347. The next prime is 51698363. The reversal of 51698360 is 6389615.

51698360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51698363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671 + ... + 10190.

It is an arithmetic number, because the mean of its divisors is an integer number (2199555).

Almost surely, 2^51698360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51698360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70385760).

51698360 is an abundant number, since it is smaller than the sum of its proper divisors (89073160).

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

51698360 is a wasteful number, since it uses less digits than its factorization.

51698360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10896 (or 10892 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 51698360 is about 7190.1571610084. The cubic root of 51698360 is about 372.5280011382.

The spelling of 51698360 in words is "fifty-one million, six hundred ninety-eight thousand, three hundred sixty".