52451857009 has 8 divisors (see below), whose sum is σ = 53922902120. Its totient is φ = 50983623936.

The previous prime is 52451856991. The next prime is 52451857037. The reversal of 52451857009 is 90075815425.

It can be written as a sum of positive squares in 4 ways, for example, as 21703182400 + 30748674609 = 147320^2 + 175353^2 .

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 52451857009 - 2³³ = 43861922417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52451857009.

It is not an unprimeable number, because it can be changed into a prime (52451857039) 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, 665154 + ... + 739819.

It is an arithmetic number, because the mean of its divisors is an integer number (6740362765).

Almost surely, 2^52451857009 is an apocalyptic number.

It is an amenable number.

52451857009 is a deficient number, since it is larger than the sum of its proper divisors (1471045111).

52451857009 is a wasteful number, since it uses less digits than its factorization.

52451857009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406019.

The product of its (nonzero) digits is 504000, while the sum is 46.

The spelling of 52451857009 in words is "fifty-two billion, four hundred fifty-one million, eight hundred fifty-seven thousand, nine".