52553145 has 32 divisors (see below), whose sum is σ = 89470080. Its totient is φ = 26265600.

The previous prime is 52553141. The next prime is 52553161. The reversal of 52553145 is 54135525.

It is a happy number.

It is not a de Polignac number, because 52553145 - 2² = 52553141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52553141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26695 + ... + 28595.

It is an arithmetic number, because the mean of its divisors is an integer number (2795940).

Almost surely, 2^52553145 is an apocalyptic number.

It is an amenable number.

52553145 is a deficient number, since it is larger than the sum of its proper divisors (36916935).

52553145 is a wasteful number, since it uses less digits than its factorization.

52553145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025.

The product of its digits is 15000, while the sum is 30.

The square root of 52553145 is about 7249.3547988769. The cubic root of 52553145 is about 374.5699247270.

The spelling of 52553145 in words is "fifty-two million, five hundred fifty-three thousand, one hundred forty-five".