659220481 has 2 divisors, whose sum is σ = 659220482. Its totient is φ = 659220480.

The previous prime is 659220461. The next prime is 659220491. The reversal of 659220481 is 184022956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 520569856 + 138650625 = 22816^2 + 11775^2 .

It is a cyclic number.

It is not a de Polignac number, because 659220481 - 2¹³ = 659212289 is a prime.

It is a super-2 number, since 2×659220481² = 869143285139742722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 659220481.

It is not a weakly prime, because it can be changed into another prime (659220421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329610240 + 329610241.

It is an arithmetic number, because the mean of its divisors is an integer number (329610241).

Almost surely, 2^659220481 is an apocalyptic number.

It is an amenable number.

659220481 is a deficient number, since it is larger than the sum of its proper divisors (1).

659220481 is an equidigital number, since it uses as much as digits as its factorization.

659220481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 659220481 is about 25675.2893070361. The cubic root of 659220481 is about 870.3158588000.

The spelling of 659220481 in words is "six hundred fifty-nine million, two hundred twenty thousand, four hundred eighty-one".