52550222521 has 8 divisors (see below), whose sum is σ = 53077517640. Its totient is φ = 52024019712.

The previous prime is 52550222507. The next prime is 52550222567. The reversal of 52550222521 is 12522205525.

52550222521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4097408121 + 48452814400 = 64011^2 + 220120^2 .

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 52550222521 - 2²³ = 52541833913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52550222581) 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, 176206 + ... + 368983.

It is an arithmetic number, because the mean of its divisors is an integer number (6634689705).

Almost surely, 2^52550222521 is an apocalyptic number.

It is an amenable number.

52550222521 is a deficient number, since it is larger than the sum of its proper divisors (527295119).

52550222521 is a wasteful number, since it uses less digits than its factorization.

52550222521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546155.

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 52550222521 in words is "fifty-two billion, five hundred fifty million, two hundred twenty-two thousand, five hundred twenty-one".