51461740 has 24 divisors (see below), whose sum is σ = 117894672. Its totient is φ = 18713280.

The previous prime is 51461699. The next prime is 51461749. The reversal of 51461740 is 4716415.

51461740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51461699 and 51461708.

It is not an unprimeable number, because it can be changed into a prime (51461749) 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, 116739 + ... + 117178.

It is an arithmetic number, because the mean of its divisors is an integer number (4912278).

Almost surely, 2^51461740 is an apocalyptic number.

It is an amenable number.

51461740 is an abundant number, since it is smaller than the sum of its proper divisors (66432932).

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

51461740 is a wasteful number, since it uses less digits than its factorization.

51461740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233937 (or 233935 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 51461740 is about 7173.6838514114. The cubic root of 51461740 is about 371.9587864312.

It can be divided in two parts, 5146 and 1740, that added together give a palindrome (6886).

The spelling of 51461740 in words is "fifty-one million, four hundred sixty-one thousand, seven hundred forty".