52505873901 has 24 divisors (see below), whose sum is σ = 83883264920. Its totient is φ = 31438025856.

The previous prime is 52505873887. The next prime is 52505873929. The reversal of 52505873901 is 10937850525.

52505873901 is a `hidden beast` number, since 5 + 250 + 5 + 8 + 7 + 390 + 1 = 666.

52505873901 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 21353976900 + 31151897001 = 146130^2 + 176499^2 .

It is not a de Polignac number, because 52505873901 - 2¹¹ = 52505871853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505873971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6060106 + ... + 6068763.

Almost surely, 2^52505873901 is an apocalyptic number.

It is an amenable number.

52505873901 is a deficient number, since it is larger than the sum of its proper divisors (31377391019).

52505873901 is a wasteful number, since it uses less digits than its factorization.

52505873901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12128925 (or 12128922 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 52505873901 in words is "fifty-two billion, five hundred five million, eight hundred seventy-three thousand, nine hundred one".