53531375 has 8 divisors (see below), whose sum is σ = 66807312. Its totient is φ = 42825000.

The previous prime is 53531369. The next prime is 53531381. The reversal of 53531375 is 57313535.

It is an interprime number because it is at equal distance from previous prime (53531369) and next prime (53531381).

It is not a de Polignac number, because 53531375 - 2⁶ = 53531311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214001 + ... + 214250.

It is an arithmetic number, because the mean of its divisors is an integer number (8350914).

Almost surely, 2^53531375 is an apocalyptic number.

53531375 is a deficient number, since it is larger than the sum of its proper divisors (13275937).

53531375 is an equidigital number, since it uses as much as digits as its factorization.

53531375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428266 (or 428256 counting only the distinct ones).

The product of its digits is 23625, while the sum is 32.

The square root of 53531375 is about 7316.5138556556. The cubic root of 53531375 is about 376.8797469120.

The spelling of 53531375 in words is "fifty-three million, five hundred thirty-one thousand, three hundred seventy-five".