53145438 has 16 divisors (see below), whose sum is σ = 108552960. Its totient is φ = 17338136.

The previous prime is 53145437. The next prime is 53145503. The reversal of 53145438 is 83454135.

It is a junction number, because it is equal to n+sod(n) for n = 53145399 and 53145408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53145437) 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, 93948 + ... + 94511.

It is an arithmetic number, because the mean of its divisors is an integer number (6784560).

Almost surely, 2^53145438 is an apocalyptic number.

53145438 is an abundant number, since it is smaller than the sum of its proper divisors (55407522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53145438 is a wasteful number, since it uses less digits than its factorization.

53145438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188511.

The product of its digits is 28800, while the sum is 33.

The square root of 53145438 is about 7290.0917689697. The cubic root of 53145438 is about 375.9718507295.

The spelling of 53145438 in words is "fifty-three million, one hundred forty-five thousand, four hundred thirty-eight".