52454513209 has 4 divisors (see below), whose sum is σ = 59948015104. Its totient is φ = 44961011316.

The previous prime is 52454513191. The next prime is 52454513219. The reversal of 52454513209 is 90231545425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52454513209 - 2²¹ = 52452416057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52454513219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3746750937 + ... + 3746750950.

It is an arithmetic number, because the mean of its divisors is an integer number (14987003776).

Almost surely, 2^52454513209 is an apocalyptic number.

It is an amenable number.

52454513209 is a deficient number, since it is larger than the sum of its proper divisors (7493501895).

52454513209 is an equidigital number, since it uses as much as digits as its factorization.

52454513209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7493501894.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 52454513209 in words is "fifty-two billion, four hundred fifty-four million, five hundred thirteen thousand, two hundred nine".