53515120 has 20 divisors (see below), whose sum is σ = 124422840. Its totient is φ = 21406016.

The previous prime is 53515097. The next prime is 53515123. The reversal of 53515120 is 2151535.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×53515120² = 5727736137228800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53515091 and 53515100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53515123) 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 3 ways as a sum of consecutive naturals, for example, 334390 + ... + 334549.

It is an arithmetic number, because the mean of its divisors is an integer number (6221142).

Almost surely, 2^53515120 is an apocalyptic number.

It is an amenable number.

53515120 is an abundant number, since it is smaller than the sum of its proper divisors (70907720).

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

53515120 is a wasteful number, since it uses less digits than its factorization.

53515120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668952 (or 668946 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 53515120 is about 7315.4029280690. The cubic root of 53515120 is about 376.8415960739.

Adding to 53515120 its reverse (2151535), we get a palindrome (55666655).

It can be divided in two parts, 53515 and 120, that added together give a palindrome (53635).

The spelling of 53515120 in words is "fifty-three million, five hundred fifteen thousand, one hundred twenty".