655058 has 4 divisors (see below), whose sum is σ = 982590. Its totient is φ = 327528.

The previous prime is 655043. The next prime is 655069. The reversal of 655058 is 850556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 508369 + 146689 = 713^2 + 383^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 655058.

It is an unprimeable number.

655058 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 163763 + ... + 163766.

2⁶⁵⁵⁰⁵⁸ is an apocalyptic number.

655058 is a deficient number, since it is larger than the sum of its proper divisors (327532).

655058 is a wasteful number, since it uses less digits than its factorization.

655058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327531.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 655058 is about 809.3565345384. The cubic root of 655058 is about 86.8480193288.

The spelling of 655058 in words is "six hundred fifty-five thousand, fifty-eight".