53063388 has 144 divisors (see below), whose sum is σ = 162751680. Its totient is φ = 14257152.

The previous prime is 53063377. The next prime is 53063393. The reversal of 53063388 is 88336035.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 387256 + ... + 387392.

It is an arithmetic number, because the mean of its divisors is an integer number (1130220).

Almost surely, 2^53063388 is an apocalyptic number.

53063388 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53063388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81375840).

53063388 is an abundant number, since it is smaller than the sum of its proper divisors (109688292).

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

53063388 is a wasteful number, since it uses less digits than its factorization.

53063388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 53063388 is about 7284.4620940739. The cubic root of 53063388 is about 375.7782663532.

The spelling of 53063388 in words is "fifty-three million, sixty-three thousand, three hundred eighty-eight".