53032145 has 4 divisors (see below), whose sum is σ = 63638580. Its totient is φ = 42425712.

The previous prime is 53032141. The next prime is 53032153. The reversal of 53032145 is 54123035.

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 29953729 + 23078416 = 5473^2 + 4804^2 .

It is a cyclic number.

It is not a de Polignac number, because 53032145 - 2² = 53032141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53032145.

It is not an unprimeable number, because it can be changed into a prime (53032141) 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, 5303210 + ... + 5303219.

It is an arithmetic number, because the mean of its divisors is an integer number (15909645).

Almost surely, 2^53032145 is an apocalyptic number.

It is an amenable number.

53032145 is a deficient number, since it is larger than the sum of its proper divisors (10606435).

53032145 is a wasteful number, since it uses less digits than its factorization.

53032145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10606434.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 53032145 is about 7282.3172822941. The cubic root of 53032145 is about 375.7045008326.

The spelling of 53032145 in words is "fifty-three million, thirty-two thousand, one hundred forty-five".