51748160 has 112 divisors (see below), whose sum is σ = 131673600. Its totient is φ = 19329024.

The previous prime is 51748139. The next prime is 51748181. The reversal of 51748160 is 6184715.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51748139) and next prime (51748181).

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 581396 + ... + 581484.

Almost surely, 2^51748160 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 51748160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65836800).

51748160 is an abundant number, since it is smaller than the sum of its proper divisors (79925440).

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

51748160 is a wasteful number, since it uses less digits than its factorization.

51748160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 51748160 is about 7193.6193949916. The cubic root of 51748160 is about 372.6475790175.

The spelling of 51748160 in words is "fifty-one million, seven hundred forty-eight thousand, one hundred sixty".