52511545 has 8 divisors (see below), whose sum is σ = 64047240. Its totient is φ = 41320320.

The previous prime is 52511519. The next prime is 52511561. The reversal of 52511545 is 54511525.

It can be written as a sum of positive squares in 4 ways, for example, as 5067001 + 47444544 = 2251^2 + 6888^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52511545 - 2⁹ = 52511033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85780 + ... + 86389.

It is an arithmetic number, because the mean of its divisors is an integer number (8005905).

Almost surely, 2^52511545 is an apocalyptic number.

It is an amenable number.

52511545 is a deficient number, since it is larger than the sum of its proper divisors (11535695).

52511545 is a wasteful number, since it uses less digits than its factorization.

52511545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172235.

The product of its digits is 5000, while the sum is 28.

The square root of 52511545 is about 7246.4850099893. The cubic root of 52511545 is about 374.4710646609.

The spelling of 52511545 in words is "fifty-two million, five hundred eleven thousand, five hundred forty-five".