53532517 has 4 divisors (see below), whose sum is σ = 53558380. Its totient is φ = 53506656.

The previous prime is 53532487. The next prime is 53532551. The reversal of 53532517 is 71523535.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3207681 + 50324836 = 1791^2 + 7094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53532517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53532617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9528 + ... + 14065.

It is an arithmetic number, because the mean of its divisors is an integer number (13389595).

Almost surely, 2^53532517 is an apocalyptic number.

It is an amenable number.

53532517 is a deficient number, since it is larger than the sum of its proper divisors (25863).

53532517 is a wasteful number, since it uses less digits than its factorization.

53532517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25862.

The product of its digits is 15750, while the sum is 31.

The square root of 53532517 is about 7316.5918978716. The cubic root of 53532517 is about 376.8824269204.

The spelling of 53532517 in words is "fifty-three million, five hundred thirty-two thousand, five hundred seventeen".