655275090 has 32 divisors (see below), whose sum is σ = 1576195200. Its totient is φ = 174347264.

The previous prime is 655275077. The next prime is 655275091. The reversal of 655275090 is 90572556.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (655275091) 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, 10854 + ... + 37793.

It is an arithmetic number, because the mean of its divisors is an integer number (49256100).

Almost surely, 2^655275090 is an apocalyptic number.

655275090 is an abundant number, since it is smaller than the sum of its proper divisors (920920110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655275090 is a wasteful number, since it uses less digits than its factorization.

655275090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49106.

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 655275090 is about 25598.3415478425. The cubic root of 655275090 is about 868.5761224740.

The spelling of 655275090 in words is "six hundred fifty-five million, two hundred seventy-five thousand, ninety".