53144975 has 24 divisors (see below), whose sum is σ = 75151440. Its totient is φ = 36933120.

The previous prime is 53144953. The next prime is 53144977. The reversal of 53144975 is 57944135.

It is not a de Polignac number, because 53144975 - 2⁸ = 53144719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53144977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 716 + ... + 10334.

It is an arithmetic number, because the mean of its divisors is an integer number (3131310).

Almost surely, 2^53144975 is an apocalyptic number.

53144975 is a deficient number, since it is larger than the sum of its proper divisors (22006465).

53144975 is a wasteful number, since it uses less digits than its factorization.

53144975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9659 (or 9654 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 53144975 is about 7290.0600134704. The cubic root of 53144975 is about 375.9707589113.

The spelling of 53144975 in words is "fifty-three million, one hundred forty-four thousand, nine hundred seventy-five".