53016720 has 40 divisors (see below), whose sum is σ = 164352576. Its totient is φ = 14137728.

The previous prime is 53016709. The next prime is 53016737. The reversal of 53016720 is 2761035.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 110212 + ... + 110691.

Almost surely, 2^53016720 is an apocalyptic number.

It is an amenable number.

53016720 is an abundant number, since it is smaller than the sum of its proper divisors (111335856).

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

53016720 is a wasteful number, since it uses less digits than its factorization.

53016720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220919 (or 220913 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 53016720 is about 7281.2581330427. The cubic root of 53016720 is about 375.6680713306.

Adding to 53016720 its reverse (2761035), we get a palindrome (55777755).

It can be divided in two parts, 5301 and 6720, that added together give a palindrome (12021).

The spelling of 53016720 in words is "fifty-three million, sixteen thousand, seven hundred twenty".