53387800 has 48 divisors (see below), whose sum is σ = 124925040. Its totient is φ = 21217920.

The previous prime is 53387791. The next prime is 53387809. The reversal of 53387800 is 878335.

It is an interprime number because it is at equal distance from previous prime (53387791) and next prime (53387809).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53387809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33829 + ... + 35371.

It is an arithmetic number, because the mean of its divisors is an integer number (2602605).

Almost surely, 2^53387800 is an apocalyptic number.

53387800 is a gapful number since it is divisible by the number (50) 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 53387800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62462520).

53387800 is an abundant number, since it is smaller than the sum of its proper divisors (71537240).

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

53387800 is a wasteful number, since it uses less digits than its factorization.

53387800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 53387800 is about 7306.6955595536. The cubic root of 53387800 is about 376.5425056962.

The spelling of 53387800 in words is "fifty-three million, three hundred eighty-seven thousand, eight hundred".