90272255 has 8 divisors (see below), whose sum is σ = 109544400. Its totient is φ = 71406016.

The previous prime is 90272251. The next prime is 90272257. The reversal of 90272255 is 55227209.

It is a happy number.

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 90272255 - 2² = 90272251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90272251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100985 + ... + 101874.

It is an arithmetic number, because the mean of its divisors is an integer number (13693050).

Almost surely, 2^90272255 is an apocalyptic number.

90272255 is a deficient number, since it is larger than the sum of its proper divisors (19272145).

90272255 is a wasteful number, since it uses less digits than its factorization.

90272255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202953.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 90272255 is about 9501.1712435889. The cubic root of 90272255 is about 448.5919030401.

The spelling of 90272255 in words is "ninety million, two hundred seventy-two thousand, two hundred fifty-five".