478352561 has 2 divisors, whose sum is σ = 478352562. Its totient is φ = 478352560.

The previous prime is 478352557. The next prime is 478352573. The reversal of 478352561 is 165253874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430811536 + 47541025 = 20756^2 + 6895^2 .

It is a cyclic number.

It is not a de Polignac number, because 478352561 - 2² = 478352557 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (478352591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239176280 + 239176281.

It is an arithmetic number, because the mean of its divisors is an integer number (239176281).

Almost surely, 2^478352561 is an apocalyptic number.

It is an amenable number.

478352561 is a deficient number, since it is larger than the sum of its proper divisors (1).

478352561 is an equidigital number, since it uses as much as digits as its factorization.

478352561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 41.

The square root of 478352561 is about 21871.2725052750. The cubic root of 478352561 is about 782.0767368002.

The spelling of 478352561 in words is "four hundred seventy-eight million, three hundred fifty-two thousand, five hundred sixty-one".