1056505650 has 48 divisors (see below), whose sum is σ = 2649607200. Its totient is φ = 278565760.

The previous prime is 1056505649. The next prime is 1056505663. The reversal of 1056505650 is 565056501.

It is a super-2 number, since 2×1056505650² = 2232408376963845000, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26220 + ... + 52919.

It is an arithmetic number, because the mean of its divisors is an integer number (55200150).

Almost surely, 2^1056505650 is an apocalyptic number.

1056505650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1056505650 is an abundant number, since it is smaller than the sum of its proper divisors (1593101550).

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

1056505650 is a wasteful number, since it uses less digits than its factorization.

1056505650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79243 (or 79238 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 1056505650 is about 32503.9328389658. The cubic root of 1056505650 is about 1018.4911852100.

The spelling of 1056505650 in words is "one billion, fifty-six million, five hundred five thousand, six hundred fifty".