655573487 has 2 divisors, whose sum is σ = 655573488. Its totient is φ = 655573486.

The previous prime is 655573453. The next prime is 655573489. The reversal of 655573487 is 784375556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655573487 - 2⁶ = 655573423 is a prime.

Together with 655573489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655573489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327786743 + 327786744.

It is an arithmetic number, because the mean of its divisors is an integer number (327786744).

Almost surely, 2^655573487 is an apocalyptic number.

655573487 is a deficient number, since it is larger than the sum of its proper divisors (1).

655573487 is an equidigital number, since it uses as much as digits as its factorization.

655573487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528000, while the sum is 50.

The square root of 655573487 is about 25604.1693284512. The cubic root of 655573487 is about 868.7079455722.

The spelling of 655573487 in words is "six hundred fifty-five million, five hundred seventy-three thousand, four hundred eighty-seven".