51898336 has 48 divisors (see below), whose sum is σ = 117258624. Its totient is φ = 22149504.

The previous prime is 51898321. The next prime is 51898369. The reversal of 51898336 is 63389815.

It is a junction number, because it is equal to n+sod(n) for n = 51898292 and 51898301.

It is a congruent number.

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, 98971 + ... + 99493.

It is an arithmetic number, because the mean of its divisors is an integer number (2442888).

Almost surely, 2^51898336 is an apocalyptic number.

51898336 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51898336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58629312).

51898336 is an abundant number, since it is smaller than the sum of its proper divisors (65360288).

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

51898336 is a wasteful number, since it uses less digits than its factorization.

51898336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 975 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 51898336 is about 7204.0499720643. The cubic root of 51898336 is about 373.0077121076.

The spelling of 51898336 in words is "fifty-one million, eight hundred ninety-eight thousand, three hundred thirty-six".