478285501 has 2 divisors, whose sum is σ = 478285502. Its totient is φ = 478285500.

The previous prime is 478285417. The next prime is 478285519. The reversal of 478285501 is 105582874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469588900 + 8696601 = 21670^2 + 2949^2 .

It is a cyclic number.

It is not a de Polignac number, because 478285501 - 2⁷ = 478285373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478285571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239142750 + 239142751.

It is an arithmetic number, because the mean of its divisors is an integer number (239142751).

Almost surely, 2^478285501 is an apocalyptic number.

It is an amenable number.

478285501 is a deficient number, since it is larger than the sum of its proper divisors (1).

478285501 is an equidigital number, since it uses as much as digits as its factorization.

478285501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 478285501 is about 21869.7393903082. The cubic root of 478285501 is about 782.0401887802.

The spelling of 478285501 in words is "four hundred seventy-eight million, two hundred eighty-five thousand, five hundred one".