478528155 has 80 divisors (see below), whose sum is σ = 1038121920. Its totient is φ = 205867008.

The previous prime is 478528151. The next prime is 478528163. The reversal of 478528155 is 551825874.

478528155 is a `hidden beast` number, since 4 + 78 + 528 + 1 + 55 = 666.

478528155 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 478528155 - 2² = 478528151 is a prime.

It is a super-3 number, since 3×478528155³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 478528155.

It is not an unprimeable number, because it can be changed into a prime (478528151) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 43231 + ... + 53159.

It is an arithmetic number, because the mean of its divisors is an integer number (12976524).

Almost surely, 2^478528155 is an apocalyptic number.

478528155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

478528155 is an abundant number, since it is smaller than the sum of its proper divisors (559593765).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478528155 is a wasteful number, since it uses less digits than its factorization.

478528155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9970 (or 9961 counting only the distinct ones).

The product of its digits is 448000, while the sum is 45.

The square root of 478528155 is about 21875.2863981252. The cubic root of 478528155 is about 782.1724201892.

The spelling of 478528155 in words is "four hundred seventy-eight million, five hundred twenty-eight thousand, one hundred fifty-five".