51483940 has 24 divisors (see below), whose sum is σ = 108255672. Its totient is φ = 20567040.

The previous prime is 51483937. The next prime is 51483947. The reversal of 51483940 is 4938415.

It can be written as a sum of positive squares in 4 ways, for example, as 7606564 + 43877376 = 2758^2 + 6624^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51483896 and 51483905.

It is not an unprimeable number, because it can be changed into a prime (51483947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23700 + ... + 25780.

It is an arithmetic number, because the mean of its divisors is an integer number (4510653).

Almost surely, 2^51483940 is an apocalyptic number.

It is an amenable number.

51483940 is an abundant number, since it is smaller than the sum of its proper divisors (56771732).

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

51483940 is a wasteful number, since it uses less digits than its factorization.

51483940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327 (or 3325 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 51483940 is about 7175.2310067342. The cubic root of 51483940 is about 372.0122649827.

The spelling of 51483940 in words is "fifty-one million, four hundred eighty-three thousand, nine hundred forty".