52572009391 has 16 divisors (see below), whose sum is σ = 57816017280. Its totient is φ = 47406509280.

The previous prime is 52572009353. The next prime is 52572009421. The reversal of 52572009391 is 19390027525.

It is a cyclic number.

It is not a de Polignac number, because 52572009391 - 2⁷ = 52572009263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52572009311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 987820 + ... + 1039678.

It is an arithmetic number, because the mean of its divisors is an integer number (3613501080).

Almost surely, 2^52572009391 is an apocalyptic number.

52572009391 is a deficient number, since it is larger than the sum of its proper divisors (5244007889).

52572009391 is a wasteful number, since it uses less digits than its factorization.

52572009391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52614.

The product of its (nonzero) digits is 170100, while the sum is 43.

The spelling of 52572009391 in words is "fifty-two billion, five hundred seventy-two million, nine thousand, three hundred ninety-one".