745255 has 16 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 503712.

The previous prime is 745249. The next prime is 745273. The reversal of 745255 is 552547.

It is a cyclic number.

It is not a de Polignac number, because 745255 - 2³ = 745247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3646 + ... + 3844.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2⁷⁴⁵²⁵⁵ is an apocalyptic number.

745255 is a deficient number, since it is larger than the sum of its proper divisors (291545).

745255 is a wasteful number, since it uses less digits than its factorization.

745255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318.

The product of its digits is 7000, while the sum is 28.

The square root of 745255 is about 863.2815299773. The cubic root of 745255 is about 90.6640188697.

It can be divided in two parts, 745 and 255, that added together give a cube (1000 = 10³).

The spelling of 745255 in words is "seven hundred forty-five thousand, two hundred fifty-five".