52505622421 has 8 divisors (see below), whose sum is σ = 60008417280. Its totient is φ = 45003325488.

The previous prime is 52505622353. The next prime is 52505622457. The reversal of 52505622421 is 12422650525.

52505622421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52505622421 - 2³¹ = 50358138773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505622721) 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, 138540 + ... + 352426.

It is an arithmetic number, because the mean of its divisors is an integer number (7501052160).

Almost surely, 2^52505622421 is an apocalyptic number.

It is an amenable number.

52505622421 is a deficient number, since it is larger than the sum of its proper divisors (7502794859).

52505622421 is a wasteful number, since it uses less digits than its factorization.

52505622421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248963.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 52505622421 in words is "fifty-two billion, five hundred five million, six hundred twenty-two thousand, four hundred twenty-one".