52542145 has 8 divisors (see below), whose sum is σ = 63334656. Its totient is φ = 41844336.

The previous prime is 52542131. The next prime is 52542157. The reversal of 52542145 is 54124525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52542145 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22447 + ... + 24676.

It is an arithmetic number, because the mean of its divisors is an integer number (7916832).

Almost surely, 2^52542145 is an apocalyptic number.

It is an amenable number.

52542145 is a deficient number, since it is larger than the sum of its proper divisors (10792511).

52542145 is a wasteful number, since it uses less digits than its factorization.

52542145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47351.

The product of its digits is 8000, while the sum is 28.

The square root of 52542145 is about 7248.5960709644. The cubic root of 52542145 is about 374.5437889193.

The spelling of 52542145 in words is "fifty-two million, five hundred forty-two thousand, one hundred forty-five".