7255905 has 8 divisors (see below), whose sum is σ = 11609472. Its totient is φ = 3869808.

The previous prime is 7255901. The next prime is 7255909. The reversal of 7255905 is 5095527.

It is an interprime number because it is at equal distance from previous prime (7255901) and next prime (7255909).

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

It is not a de Polignac number, because 7255905 - 2² = 7255901 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7255901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241849 + ... + 241878.

It is an arithmetic number, because the mean of its divisors is an integer number (1451184).

Almost surely, 2^7255905 is an apocalyptic number.

It is an amenable number.

7255905 is a deficient number, since it is larger than the sum of its proper divisors (4353567).

7255905 is a wasteful number, since it uses less digits than its factorization.

7255905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483735.

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 7255905 is about 2693.6787113537. The cubic root of 7255905 is about 193.5963638100.

The spelling of 7255905 in words is "seven million, two hundred fifty-five thousand, nine hundred five".