53145338 has 16 divisors (see below), whose sum is σ = 81355200. Its totient is φ = 26031456.

The previous prime is 53145331. The next prime is 53145343. The reversal of 53145338 is 83354135.

It is a super-2 number, since 2×53145338² = 5648853902268488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53145331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25670 + ... + 27662.

It is an arithmetic number, because the mean of its divisors is an integer number (5084700).

Almost surely, 2^53145338 is an apocalyptic number.

53145338 is a deficient number, since it is larger than the sum of its proper divisors (28209862).

53145338 is a wasteful number, since it uses less digits than its factorization.

53145338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261.

The product of its digits is 21600, while the sum is 32.

The square root of 53145338 is about 7290.0849103423. The cubic root of 53145338 is about 375.9716149162.

The spelling of 53145338 in words is "fifty-three million, one hundred forty-five thousand, three hundred thirty-eight".