53646513 has 8 divisors (see below), whose sum is σ = 71568288. Its totient is φ = 35744544.

The previous prime is 53646503. The next prime is 53646521. The reversal of 53646513 is 31564635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53646513 - 2⁴ = 53646497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53646503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3370 + ... + 10892.

It is an arithmetic number, because the mean of its divisors is an integer number (8946036).

Almost surely, 2^53646513 is an apocalyptic number.

It is an amenable number.

53646513 is a deficient number, since it is larger than the sum of its proper divisors (17921775).

53646513 is a wasteful number, since it uses less digits than its factorization.

53646513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9903.

The product of its digits is 32400, while the sum is 33.

The square root of 53646513 is about 7324.3779940688. The cubic root of 53646513 is about 377.1497574536.

The spelling of 53646513 in words is "fifty-three million, six hundred forty-six thousand, five hundred thirteen".