53318529 has 24 divisors (see below), whose sum is σ = 84730464. Its totient is φ = 32307000.

The previous prime is 53318519. The next prime is 53318557. The reversal of 53318529 is 92581335.

It is not a de Polignac number, because 53318529 - 2⁷ = 53318401 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53318493 and 53318502.

It is not an unprimeable number, because it can be changed into a prime (53318509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9754 + ... + 14204.

It is an arithmetic number, because the mean of its divisors is an integer number (3530436).

Almost surely, 2^53318529 is an apocalyptic number.

It is an amenable number.

53318529 is a deficient number, since it is larger than the sum of its proper divisors (31411935).

53318529 is a wasteful number, since it uses less digits than its factorization.

53318529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490 (or 4465 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 53318529 is about 7301.9537796401. The cubic root of 53318529 is about 376.3795798017.

The spelling of 53318529 in words is "fifty-three million, three hundred eighteen thousand, five hundred twenty-nine".