53865264 has 80 divisors (see below), whose sum is σ = 146990592. Its totient is φ = 16963584.

The previous prime is 53865263. The next prime is 53865269. The reversal of 53865264 is 46256835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53865263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106837 + ... + 107339.

Almost surely, 2^53865264 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 53865264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73495296).

53865264 is an abundant number, since it is smaller than the sum of its proper divisors (93125328).

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

53865264 is a wasteful number, since it uses less digits than its factorization.

53865264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 628 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 53865264 is about 7339.2958790336. The cubic root of 53865264 is about 377.6616888464.

The spelling of 53865264 in words is "fifty-three million, eight hundred sixty-five thousand, two hundred sixty-four".