51418336 has 48 divisors (see below), whose sum is σ = 110678400. Its totient is φ = 23408640.

The previous prime is 51418331. The next prime is 51418337. The reversal of 51418336 is 63381415.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 51418298 and 51418307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51418331) 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, 15340 + ... + 18388.

It is an arithmetic number, because the mean of its divisors is an integer number (2305800).

Almost surely, 2^51418336 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 51418336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55339200).

51418336 is an abundant number, since it is smaller than the sum of its proper divisors (59260064).

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

51418336 is a wasteful number, since it uses less digits than its factorization.

51418336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107 (or 3099 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 51418336 is about 7170.6579893340. The cubic root of 51418336 is about 371.8541841890.

The spelling of 51418336 in words is "fifty-one million, four hundred eighteen thousand, three hundred thirty-six".