53057145 has 16 divisors (see below), whose sum is σ = 85038912. Its totient is φ = 28248000.

The previous prime is 53057143. The next prime is 53057161. The reversal of 53057145 is 54175035.

It is not a de Polignac number, because 53057145 - 2¹ = 53057143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53057143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6895 + ... + 12395.

It is an arithmetic number, because the mean of its divisors is an integer number (5314932).

Almost surely, 2^53057145 is an apocalyptic number.

It is an amenable number.

53057145 is a deficient number, since it is larger than the sum of its proper divisors (31981767).

53057145 is a wasteful number, since it uses less digits than its factorization.

53057145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 53057145 is about 7284.0335666442. The cubic root of 53057145 is about 375.7635287861.

It can be divided in two parts, 530 and 57145, that added together give a palindrome (57675).

The spelling of 53057145 in words is "fifty-three million, fifty-seven thousand, one hundred forty-five".