51488814 has 32 divisors (see below), whose sum is σ = 112160160. Its totient is φ = 15662592.

The previous prime is 51488807. The next prime is 51488837. The reversal of 51488814 is 41888415.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3234 + ... + 10650.

It is an arithmetic number, because the mean of its divisors is an integer number (3505005).

Almost surely, 2^51488814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51488814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56080080).

51488814 is an abundant number, since it is smaller than the sum of its proper divisors (60671346).

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

51488814 is a wasteful number, since it uses less digits than its factorization.

51488814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524.

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

The square root of 51488814 is about 7175.5706393290. The cubic root of 51488814 is about 372.0240041164.

The spelling of 51488814 in words is "fifty-one million, four hundred eighty-eight thousand, eight hundred fourteen".