52573620521 has 8 divisors (see below), whose sum is σ = 58595986080. Its totient is φ = 46876788288.

The previous prime is 52573620509. The next prime is 52573620553. The reversal of 52573620521 is 12502637525.

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

It is a cyclic number.

It is not a de Polignac number, because 52573620521 - 2¹⁴ = 52573604137 is a prime.

It is a super-2 number, since 2×52573620521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52573620221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81382991 + ... + 81383636.

It is an arithmetic number, because the mean of its divisors is an integer number (7324498260).

Almost surely, 2^52573620521 is an apocalyptic number.

It is an amenable number.

52573620521 is a deficient number, since it is larger than the sum of its proper divisors (6022365559).

52573620521 is a wasteful number, since it uses less digits than its factorization.

52573620521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162766663.

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 52573620521 in words is "fifty-two billion, five hundred seventy-three million, six hundred twenty thousand, five hundred twenty-one".