53002836 has 60 divisors (see below), whose sum is σ = 143363220. Its totient is φ = 17055360.

The previous prime is 53002813. The next prime is 53002841. The reversal of 53002836 is 63820035.

It can be written as a sum of positive squares in 2 ways, for example, as 43639236 + 9363600 = 6606^2 + 3060^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6576 + ... + 12216.

It is an arithmetic number, because the mean of its divisors is an integer number (2389387).

Almost surely, 2^53002836 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 53002836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71681610).

53002836 is an abundant number, since it is smaller than the sum of its proper divisors (90360384).

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

53002836 is a wasteful number, since it uses less digits than its factorization.

53002836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686 (or 5675 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 53002836 is about 7280.3046639547. The cubic root of 53002836 is about 375.6352751934.

The spelling of 53002836 in words is "fifty-three million, two thousand, eight hundred thirty-six".