52521351345 has 40 divisors (see below), whose sum is σ = 98242854336. Its totient is φ = 26793496224.

The previous prime is 52521351319. The next prime is 52521351347. The reversal of 52521351345 is 54315312525.

52521351345 is a `hidden beast` number, since 5 + 252 + 13 + 51 + 345 = 666.

It is not a de Polignac number, because 52521351345 - 2⁵ = 52521351313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52521351347) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2809867 + ... + 2828496.

Almost surely, 2^52521351345 is an apocalyptic number.

It is an amenable number.

52521351345 is a deficient number, since it is larger than the sum of its proper divisors (45721502991).

52521351345 is a wasteful number, since it uses less digits than its factorization.

52521351345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5638403 (or 5638394 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 52521351345 in words is "fifty-two billion, five hundred twenty-one million, three hundred fifty-one thousand, three hundred forty-five".