52150545445 has 4 divisors (see below), whose sum is σ = 62580654540. Its totient is φ = 41720436352.

The previous prime is 52150545373. The next prime is 52150545449. The reversal of 52150545445 is 54454505125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25159669924 + 26990875521 = 158618^2 + 164289^2 .

It is a cyclic number.

It is not a de Polignac number, because 52150545445 - 2³³ = 43560610853 is a prime.

It is a super-2 number, since 2×52150545445² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 52150545398 and 52150545407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52150545449) 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, 5215054540 + ... + 5215054549.

It is an arithmetic number, because the mean of its divisors is an integer number (15645163635).

Almost surely, 2^52150545445 is an apocalyptic number.

It is an amenable number.

52150545445 is a deficient number, since it is larger than the sum of its proper divisors (10430109095).

52150545445 is a wasteful number, since it uses less digits than its factorization.

52150545445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10430109094.

The product of its (nonzero) digits is 400000, while the sum is 40.

The spelling of 52150545445 in words is "fifty-two billion, one hundred fifty million, five hundred forty-five thousand, four hundred forty-five".