51883540 has 24 divisors (see below), whose sum is σ = 109103400. Its totient is φ = 20725248.

The previous prime is 51883537. The next prime is 51883543. The reversal of 51883540 is 4538815.

51883540 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 (51883537) and next prime (51883543).

It can be written as a sum of positive squares in 4 ways, for example, as 20903184 + 30980356 = 4572^2 + 5566^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51883496 and 51883505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51883543) 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, 19744 + ... + 22216.

It is an arithmetic number, because the mean of its divisors is an integer number (4545975).

Almost surely, 2^51883540 is an apocalyptic number.

It is an amenable number.

51883540 is an abundant number, since it is smaller than the sum of its proper divisors (57219860).

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

51883540 is a wasteful number, since it uses less digits than its factorization.

51883540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531 (or 3529 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 51883540 is about 7203.0229765009. The cubic root of 51883540 is about 372.9722610887.

The spelling of 51883540 in words is "fifty-one million, eight hundred eighty-three thousand, five hundred forty".