654552079 has 2 divisors, whose sum is σ = 654552080. Its totient is φ = 654552078.

The previous prime is 654552047. The next prime is 654552097. The reversal of 654552079 is 970255456.

Together with next prime (654552097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 654552079 - 2⁵ = 654552047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654552179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327276039 + 327276040.

It is an arithmetic number, because the mean of its divisors is an integer number (327276040).

Almost surely, 2^654552079 is an apocalyptic number.

654552079 is a deficient number, since it is larger than the sum of its proper divisors (1).

654552079 is an equidigital number, since it uses as much as digits as its factorization.

654552079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 43.

The square root of 654552079 is about 25584.2154267040. The cubic root of 654552079 is about 868.2565512432.

The spelling of 654552079 in words is "six hundred fifty-four million, five hundred fifty-two thousand, seventy-nine".