51814488 has 64 divisors (see below), whose sum is σ = 144789120. Its totient is φ = 15315200.

The previous prime is 51814481. The next prime is 51814489. The reversal of 51814488 is 88441815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51814481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8431 + ... + 13217.

It is an arithmetic number, because the mean of its divisors is an integer number (2262330).

Almost surely, 2^51814488 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 51814488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72394560).

51814488 is an abundant number, since it is smaller than the sum of its proper divisors (92974632).

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

51814488 is a wasteful number, since it uses less digits than its factorization.

51814488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848 (or 4844 counting only the distinct ones).

The product of its digits is 40960, while the sum is 39.

The square root of 51814488 is about 7198.2281153073. The cubic root of 51814488 is about 372.8067242305.

It can be divided in two parts, 5181 and 4488, that added together give a palindrome (9669).

The spelling of 51814488 in words is "fifty-one million, eight hundred fourteen thousand, four hundred eighty-eight".