53003628521 has 8 divisors (see below), whose sum is σ = 55904224320. Its totient is φ = 50114125872.

The previous prime is 53003628487. The next prime is 53003628527. The reversal of 53003628521 is 12582630035.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53003628521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53003628527) 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, 2763470 + ... + 2782583.

It is an arithmetic number, because the mean of its divisors is an integer number (6988028040).

Almost surely, 2^53003628521 is an apocalyptic number.

It is an amenable number.

53003628521 is a deficient number, since it is larger than the sum of its proper divisors (2900595799).

53003628521 is a wasteful number, since it uses less digits than its factorization.

53003628521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5546575.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 53003628521 in words is "fifty-three billion, three million, six hundred twenty-eight thousand, five hundred twenty-one".