530255553521 has 8 divisors (see below), whose sum is σ = 543229903944. Its totient is φ = 517283169280.

The previous prime is 530255553497. The next prime is 530255553539. The reversal of 530255553521 is 125355552035.

It can be written as a sum of positive squares in 4 ways, for example, as 9635581921 + 520619971600 = 98161^2 + 721540^2 .

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-530255553521 is a prime.

It is a super-4 number, since 4×530255553521⁴ (a number of 48 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530255553571) 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, 61961 + ... + 1031673.

It is an arithmetic number, because the mean of its divisors is an integer number (67903737993).

Almost surely, 2^530255553521 is an apocalyptic number.

It is an amenable number.

530255553521 is a deficient number, since it is larger than the sum of its proper divisors (12974350423).

530255553521 is a wasteful number, since it uses less digits than its factorization.

530255553521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983091.

The product of its (nonzero) digits is 562500, while the sum is 41.

The spelling of 530255553521 in words is "five hundred thirty billion, two hundred fifty-five million, five hundred fifty-three thousand, five hundred twenty-one".