51113760 has 48 divisors (see below), whose sum is σ = 161009856. Its totient is φ = 13630208.

The previous prime is 51113759. The next prime is 51113767. The reversal of 51113760 is 6731115.

51113760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×51113760² = 5225232922675200, which contains 22 as substring.

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 51113760.

It is not an unprimeable number, because it can be changed into a prime (51113767) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 52764 + ... + 53723.

It is an arithmetic number, because the mean of its divisors is an integer number (3354372).

Almost surely, 2^51113760 is an apocalyptic number.

It is an amenable number.

51113760 is an abundant number, since it is smaller than the sum of its proper divisors (109896096).

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

51113760 is a wasteful number, since it uses less digits than its factorization.

51113760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106505 (or 106497 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 51113760 is about 7149.3887850641. The cubic root of 51113760 is about 371.1185048254.

Adding to 51113760 its reverse (6731115), we get a palindrome (57844875).

The spelling of 51113760 in words is "fifty-one million, one hundred thirteen thousand, seven hundred sixty".