53087736 has 64 divisors (see below), whose sum is σ = 151351200. Its totient is φ = 15372288.

The previous prime is 53087731. The next prime is 53087747. The reversal of 53087736 is 63778035.

53087736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 53087694 and 53087703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53087731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300 + ... + 10308.

Almost surely, 2^53087736 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 53087736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75675600).

53087736 is an abundant number, since it is smaller than the sum of its proper divisors (98263464).

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

53087736 is a wasteful number, since it uses less digits than its factorization.

53087736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10048 (or 10044 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 53087736 is about 7286.1331308177. The cubic root of 53087736 is about 375.8357325305.

The spelling of 53087736 in words is "fifty-three million, eighty-seven thousand, seven hundred thirty-six".