51551160 has 64 divisors (see below), whose sum is σ = 155325600. Its totient is φ = 13687296.

The previous prime is 51551147. The next prime is 51551173. The reversal of 51551160 is 6115515.

51551160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51551147) and next prime (51551173).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 51551160.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31482 + ... + 33078.

Almost surely, 2^51551160 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 51551160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77662800).

51551160 is an abundant number, since it is smaller than the sum of its proper divisors (103774440).

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

51551160 is a wasteful number, since it uses less digits than its factorization.

51551160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880 (or 1876 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 51551160 is about 7179.9136485058. The cubic root of 51551160 is about 372.1741004925.

Adding to 51551160 its reverse (6115515), we get a palindrome (57666675).

The spelling of 51551160 in words is "fifty-one million, five hundred fifty-one thousand, one hundred sixty".