53393775 has 48 divisors (see below), whose sum is σ = 92279808. Its totient is φ = 27216000.

The previous prime is 53393699. The next prime is 53393777. The reversal of 53393775 is 57739335.

It is not a de Polignac number, because 53393775 - 2²⁵ = 19839343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53393777) 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, 196890 + ... + 197160.

It is an arithmetic number, because the mean of its divisors is an integer number (1922496).

Almost surely, 2^53393775 is an apocalyptic number.

53393775 is a deficient number, since it is larger than the sum of its proper divisors (38886033).

53393775 is a wasteful number, since it uses less digits than its factorization.

53393775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 387 counting only the distinct ones).

The product of its digits is 297675, while the sum is 42.

The square root of 53393775 is about 7307.1044196727. The cubic root of 53393775 is about 376.5565523357.

It can be divided in two parts, 53 and 393775, that added together give a triangular number (393828 = T₈₈₇).

The spelling of 53393775 in words is "fifty-three million, three hundred ninety-three thousand, seven hundred seventy-five".