747255 has 16 divisors (see below), whose sum is σ = 1234944. Its totient is φ = 385440.

The previous prime is 747239. The next prime is 747259. The reversal of 747255 is 552747.

747255 = 140² + 141² + ... + 170².

747255 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 747255 - 2⁴ = 747239 is a prime.

747255 is strictly pandigital in base 7.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 747255.

It is not an unprimeable number, because it can be changed into a prime (747259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339 + ... + 1268.

It is an arithmetic number, because the mean of its divisors is an integer number (77184).

2⁷⁴⁷²⁵⁵ is an apocalyptic number.

747255 is a deficient number, since it is larger than the sum of its proper divisors (487689).

747255 is a wasteful number, since it uses less digits than its factorization.

747255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646.

The product of its digits is 9800, while the sum is 30.

The square root of 747255 is about 864.4391245195. The cubic root of 747255 is about 90.7450497797.

The spelling of 747255 in words is "seven hundred forty-seven thousand, two hundred fifty-five".