1005503650 has 24 divisors (see below), whose sum is σ = 1951553664. Its totient is φ = 384714000.

The previous prime is 1005503593. The next prime is 1005503663. The reversal of 1005503650 is 563055001.

It is a super-2 number, since 2×1005503650² = 2022075180326645000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 11 ways as a sum of consecutive naturals, for example, 436026 + ... + 438325.

It is an arithmetic number, because the mean of its divisors is an integer number (81314736).

Almost surely, 2^1005503650 is an apocalyptic number.

1005503650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005503650 is a deficient number, since it is larger than the sum of its proper divisors (946050014).

1005503650 is a wasteful number, since it uses less digits than its factorization.

1005503650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874386 (or 874381 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 1005503650 is about 31709.6775448758. The cubic root of 1005503650 is about 1001.8311946792.

Adding to 1005503650 its reverse (563055001), we get a palindrome (1568558651).

The spelling of 1005503650 in words is "one billion, five million, five hundred three thousand, six hundred fifty".