1028555475 has 12 divisors (see below), whose sum is σ = 1700545176. Its totient is φ = 548562880.

The previous prime is 1028555461. The next prime is 1028555483. The reversal of 1028555475 is 5745558201.

It is not a de Polignac number, because 1028555475 - 2⁴ = 1028555459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6856962 + ... + 6857111.

It is an arithmetic number, because the mean of its divisors is an integer number (141712098).

Almost surely, 2^1028555475 is an apocalyptic number.

1028555475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1028555475 is a deficient number, since it is larger than the sum of its proper divisors (671989701).

1028555475 is a wasteful number, since it uses less digits than its factorization.

1028555475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13714086 (or 13714081 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 42.

The square root of 1028555475 is about 32071.1003085332. The cubic root of 1028555475 is about 1009.4293005003.

The spelling of 1028555475 in words is "one billion, twenty-eight million, five hundred fifty-five thousand, four hundred seventy-five".