478042501 has 2 divisors, whose sum is σ = 478042502. Its totient is φ = 478042500.

The previous prime is 478042469. The next prime is 478042517. The reversal of 478042501 is 105240874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451520001 + 26522500 = 21249^2 + 5150^2 .

It is a cyclic number.

It is not a de Polignac number, because 478042501 - 2⁵ = 478042469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478042531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239021250 + 239021251.

It is an arithmetic number, because the mean of its divisors is an integer number (239021251).

Almost surely, 2^478042501 is an apocalyptic number.

It is an amenable number.

478042501 is a deficient number, since it is larger than the sum of its proper divisors (1).

478042501 is an equidigital number, since it uses as much as digits as its factorization.

478042501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 478042501 is about 21864.1830627170. The cubic root of 478042501 is about 781.9077239950.

It can be divided in two parts, 47804 and 2501, that added together give a palindrome (50305).

The spelling of 478042501 in words is "four hundred seventy-eight million, forty-two thousand, five hundred one".