7255745 has 8 divisors (see below), whose sum is σ = 9950784. Its totient is φ = 4975344.

The previous prime is 7255733. The next prime is 7255757. The reversal of 7255745 is 5475527.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7255733) and next prime (7255757).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7255745 - 2⁶ = 7255681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 207307 = 7255745 / (7 + 2 + 5 + 5 + 7 + 4 + 5).

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 103619 + ... + 103688.

It is an arithmetic number, because the mean of its divisors is an integer number (1243848).

Almost surely, 2^7255745 is an apocalyptic number.

It is an amenable number.

7255745 is a deficient number, since it is larger than the sum of its proper divisors (2695039).

7255745 is a wasteful number, since it uses less digits than its factorization.

7255745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207319.

The product of its digits is 49000, while the sum is 35.

The square root of 7255745 is about 2693.6490120281. The cubic root of 7255745 is about 193.5949408014.

It can be divided in two parts, 7255 and 745, that added together give a cube (8000 = 20³).

The spelling of 7255745 in words is "seven million, two hundred fifty-five thousand, seven hundred forty-five".