53003136 has 64 divisors (see below), whose sum is σ = 142571520. Its totient is φ = 17444352.

The previous prime is 53003131. The next prime is 53003147. The reversal of 53003136 is 63130035.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53003131) 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, 31041 + ... + 32703.

It is an arithmetic number, because the mean of its divisors is an integer number (2227680).

Almost surely, 2^53003136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53003136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71285760).

53003136 is an abundant number, since it is smaller than the sum of its proper divisors (89568384).

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

53003136 is a wasteful number, since it uses less digits than its factorization.

53003136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763 (or 1751 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 53003136 is about 7280.3252674589. The cubic root of 53003136 is about 375.6359839000.

The spelling of 53003136 in words is "fifty-three million, three thousand, one hundred thirty-six".