1020556485 has 48 divisors (see below), whose sum is σ = 1931948928. Its totient is φ = 495331200.

The previous prime is 1020556469. The next prime is 1020556531. The reversal of 1020556485 is 5846550201.

1020556485 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 5 + 5 + 648 + 5 = 666.

It is not a de Polignac number, because 1020556485 - 2⁴ = 1020556469 is a prime.

It is a zygodrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29250 + ... + 53820.

It is an arithmetic number, because the mean of its divisors is an integer number (40248936).

Almost surely, 2^1020556485 is an apocalyptic number.

1020556485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020556485 is a deficient number, since it is larger than the sum of its proper divisors (911392443).

1020556485 is a wasteful number, since it uses less digits than its factorization.

1020556485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24666 (or 24663 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 1020556485 is about 31946.1497680080. The cubic root of 1020556485 is about 1006.8057385137.

The spelling of 1020556485 in words is "one billion, twenty million, five hundred fifty-six thousand, four hundred eighty-five".