1005550653 has 8 divisors (see below), whose sum is σ = 1340942400. Its totient is φ = 670263008.

The previous prime is 1005550643. The next prime is 1005550703. The reversal of 1005550653 is 3560555001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1005550653 - 2⁵ = 1005550621 is a prime.

It is a super-2 number, since 2×1005550653² = 2022264231497452818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1005550653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005550613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328 + ... + 44846.

It is an arithmetic number, because the mean of its divisors is an integer number (167617800).

Almost surely, 2^1005550653 is an apocalyptic number.

It is an amenable number.

1005550653 is a deficient number, since it is larger than the sum of its proper divisors (335391747).

1005550653 is an equidigital number, since it uses as much as digits as its factorization.

1005550653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52051.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 1005550653 is about 31710.4186821934. The cubic root of 1005550653 is about 1001.8468048788.

The spelling of 1005550653 in words is "one billion, five million, five hundred fifty thousand, six hundred fifty-three".