52281912 has 32 divisors (see below), whose sum is σ = 131932800. Its totient is φ = 17263584.

The previous prime is 52281881. The next prime is 52281917. The reversal of 52281912 is 21918225.

It is a self number, because there is not a number n which added to its sum of digits gives 52281912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52281917) 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, 7612 + ... + 12747.

It is an arithmetic number, because the mean of its divisors is an integer number (4122900).

Almost surely, 2^52281912 is an apocalyptic number.

It is an amenable number.

52281912 is an abundant number, since it is smaller than the sum of its proper divisors (79650888).

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

52281912 is a wasteful number, since it uses less digits than its factorization.

52281912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20475 (or 20471 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 52281912 is about 7230.6232096549. The cubic root of 52281912 is about 373.9244130277.

It can be divided in two parts, 5228 and 1912, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 52281912 in words is "fifty-two million, two hundred eighty-one thousand, nine hundred twelve".