1020776550 has 48 divisors (see below), whose sum is σ = 2585405952. Its totient is φ = 266413600.

The previous prime is 1020776531. The next prime is 1020776567. The reversal of 1020776550 is 556770201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65346 + ... + 79445.

It is an arithmetic number, because the mean of its divisors is an integer number (53862624).

Almost surely, 2^1020776550 is an apocalyptic number.

1020776550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020776550 is an abundant number, since it is smaller than the sum of its proper divisors (1564629402).

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

1020776550 is a wasteful number, since it uses less digits than its factorization.

1020776550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144853 (or 144848 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 1020776550 is about 31949.5938941327. The cubic root of 1020776550 is about 1006.8780999442.

The spelling of 1020776550 in words is "one billion, twenty million, seven hundred seventy-six thousand, five hundred fifty".