53165775 has 48 divisors (see below), whose sum is σ = 97771520. Its totient is φ = 25315200.

The previous prime is 53165771. The next prime is 53165813. The reversal of 53165775 is 57756135.

It is a happy number.

It is not a de Polignac number, because 53165775 - 2² = 53165771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53165771) 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 47 ways as a sum of consecutive naturals, for example, 29346 + ... + 31104.

Almost surely, 2^53165775 is an apocalyptic number.

53165775 is a deficient number, since it is larger than the sum of its proper divisors (44605745).

53165775 is a wasteful number, since it uses less digits than its factorization.

53165775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1811 counting only the distinct ones).

The product of its digits is 110250, while the sum is 39.

The square root of 53165775 is about 7291.4864739640. The cubic root of 53165775 is about 376.0198019411.

The spelling of 53165775 in words is "fifty-three million, one hundred sixty-five thousand, seven hundred seventy-five".