478526557 has 8 divisors (see below), whose sum is σ = 508951296. Its totient is φ = 448354752.

The previous prime is 478526527. The next prime is 478526563. The reversal of 478526557 is 755625874.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478526557 - 2⁷ = 478526429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 478526557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478526507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59323 + ... + 66904.

It is an arithmetic number, because the mean of its divisors is an integer number (63618912).

Almost surely, 2^478526557 is an apocalyptic number.

It is an amenable number.

478526557 is a deficient number, since it is larger than the sum of its proper divisors (30424739).

478526557 is a wasteful number, since it uses less digits than its factorization.

478526557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126467.

The product of its digits is 2352000, while the sum is 49.

The square root of 478526557 is about 21875.2498728586. The cubic root of 478526557 is about 782.1715495243.

The spelling of 478526557 in words is "four hundred seventy-eight million, five hundred twenty-six thousand, five hundred fifty-seven".