478507557 has 16 divisors (see below), whose sum is σ = 696407040. Its totient is φ = 289839600.

The previous prime is 478507543. The next prime is 478507559. The reversal of 478507557 is 755705874.

It is a happy number.

It is not a de Polignac number, because 478507557 - 2⁴ = 478507541 is a prime.

It is a super-2 number, since 2×478507557² = 457938964212216498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478507559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80932 + ... + 86642.

It is an arithmetic number, because the mean of its divisors is an integer number (43525440).

Almost surely, 2^478507557 is an apocalyptic number.

It is an amenable number.

478507557 is a deficient number, since it is larger than the sum of its proper divisors (217899483).

478507557 is a wasteful number, since it uses less digits than its factorization.

478507557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8264.

The product of its (nonzero) digits is 1372000, while the sum is 48.

The square root of 478507557 is about 21874.8155877941. The cubic root of 478507557 is about 782.1611972907.

The spelling of 478507557 in words is "four hundred seventy-eight million, five hundred seven thousand, five hundred fifty-seven".