655507 has 2 divisors, whose sum is σ = 655508. Its totient is φ = 655506.

The previous prime is 655489. The next prime is 655511. The reversal of 655507 is 705556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655507 - 2⁷ = 655379 is a prime.

It is not a weakly prime, because it can be changed into another prime (655517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327753 + 327754.

It is an arithmetic number, because the mean of its divisors is an integer number (327754).

2⁶⁵⁵⁵⁰⁷ is an apocalyptic number.

655507 is a deficient number, since it is larger than the sum of its proper divisors (1).

655507 is an equidigital number, since it uses as much as digits as its factorization.

655507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 655507 is about 809.6338678687. The cubic root of 655507 is about 86.8678577017.

The spelling of 655507 in words is "six hundred fifty-five thousand, five hundred seven".