53017320 has 32 divisors (see below), whose sum is σ = 159052320. Its totient is φ = 14137920.

The previous prime is 53017319. The next prime is 53017343. The reversal of 53017320 is 2371035.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220786 + ... + 221025.

It is an arithmetic number, because the mean of its divisors is an integer number (4970385).

Almost surely, 2^53017320 is an apocalyptic number.

It is an amenable number.

53017320 is an abundant number, since it is smaller than the sum of its proper divisors (106035000).

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

53017320 is a wasteful number, since it uses less digits than its factorization.

53017320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441825 (or 441821 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 53017320 is about 7281.2993345968. The cubic root of 53017320 is about 375.6694884936.

Adding to 53017320 its reverse (2371035), we get a palindrome (55388355).

It can be divided in two parts, 5301 and 7320, that added together give a palindrome (12621).

The spelling of 53017320 in words is "fifty-three million, seventeen thousand, three hundred twenty".