53244040 has 32 divisors (see below), whose sum is σ = 120087360. Its totient is φ = 21246400.

The previous prime is 53244031. The next prime is 53244041. The reversal of 53244040 is 4044235.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53244041) 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, 18285 + ... + 20995.

It is an arithmetic number, because the mean of its divisors is an integer number (3752730).

Almost surely, 2^53244040 is an apocalyptic number.

It is an amenable number.

53244040 is an abundant number, since it is smaller than the sum of its proper divisors (66843320).

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

53244040 is a wasteful number, since it uses less digits than its factorization.

53244040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213 (or 3209 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 53244040 is about 7296.8513757648. The cubic root of 53244040 is about 376.2042235968.

Adding to 53244040 its reverse (4044235), we get a palindrome (57288275).

The spelling of 53244040 in words is "fifty-three million, two hundred forty-four thousand, forty".