53388764 has 24 divisors (see below), whose sum is σ = 109765488. Its totient is φ = 22400640.

The previous prime is 53388761. The next prime is 53388787. The reversal of 53388764 is 46788335.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53388761) 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, 46097 + ... + 47240.

It is an arithmetic number, because the mean of its divisors is an integer number (4573562).

Almost surely, 2^53388764 is an apocalyptic number.

It is an amenable number.

53388764 is an abundant number, since it is smaller than the sum of its proper divisors (56376724).

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

53388764 is a wasteful number, since it uses less digits than its factorization.

53388764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93365 (or 93363 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 53388764 is about 7306.7615261482. The cubic root of 53388764 is about 376.5447720366.

The spelling of 53388764 in words is "fifty-three million, three hundred eighty-eight thousand, seven hundred sixty-four".