255729375 has 60 divisors (see below), whose sum is σ = 503670024. Its totient is φ = 123960000.

The previous prime is 255729373. The next prime is 255729377. The reversal of 255729375 is 573927552.

255729375 is a `hidden beast` number, since 2 + 5 + 572 + 9 + 3 + 75 = 666.

It is an interprime number because it is at equal distance from previous prime (255729373) and next prime (255729377).

It is not a de Polignac number, because 255729375 - 2¹ = 255729373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 255729375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255729373) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 59809 + ... + 63941.

Almost surely, 2^255729375 is an apocalyptic number.

255729375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

255729375 is a deficient number, since it is larger than the sum of its proper divisors (247940649).

255729375 is a wasteful number, since it uses less digits than its factorization.

255729375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170 (or 4152 counting only the distinct ones).

The product of its digits is 661500, while the sum is 45.

The square root of 255729375 is about 15991.5407325248. The cubic root of 255729375 is about 634.7365968935.

The spelling of 255729375 in words is "two hundred fifty-five million, seven hundred twenty-nine thousand, three hundred seventy-five".