1005554983 has 2 divisors, whose sum is σ = 1005554984. Its totient is φ = 1005554982.

The previous prime is 1005554969. The next prime is 1005555007. The reversal of 1005554983 is 3894555001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005554983 is a prime.

It is a super-2 number, since 2×1005554983² = 2022281647672260578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005554933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502777491 + 502777492.

It is an arithmetic number, because the mean of its divisors is an integer number (502777492).

Almost surely, 2^1005554983 is an apocalyptic number.

1005554983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005554983 is an equidigital number, since it uses as much as digits as its factorization.

1005554983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 1005554983 is about 31710.4869562106. The cubic root of 1005554983 is about 1001.8482428937.

The spelling of 1005554983 in words is "one billion, five million, five hundred fifty-four thousand, nine hundred eighty-three".