53003144 has 32 divisors (see below), whose sum is σ = 106968600. Its totient is φ = 24529920.

The previous prime is 53003131. The next prime is 53003147. The reversal of 53003144 is 44130035.

It can be written as a sum of positive squares in 4 ways, for example, as 19802500 + 33200644 = 4450^2 + 5762^2 .

It is not an unprimeable number, because it can be changed into a prime (53003147) 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, 5102 + ... + 11490.

Almost surely, 2^53003144 is an apocalyptic number.

It is an amenable number.

53003144 is an abundant number, since it is smaller than the sum of its proper divisors (53965456).

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

53003144 is a wasteful number, since it uses less digits than its factorization.

53003144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473 (or 6469 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 53003144 is about 7280.3258168848. The cubic root of 53003144 is about 375.6360027988.

Adding to 53003144 its reverse (44130035), we get a palindrome (97133179).

The spelling of 53003144 in words is "fifty-three million, three thousand, one hundred forty-four".