1000552649 has 2 divisors, whose sum is σ = 1000552650. Its totient is φ = 1000552648.

The previous prime is 1000552627. The next prime is 1000552669. The reversal of 1000552649 is 9462550001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505935049 + 494617600 = 22493^2 + 22240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000552649 - 2⁸ = 1000552393 is a prime.

It is a super-2 number, since 2×1000552649² = 2002211206841834402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1000552669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500276324 + 500276325.

It is an arithmetic number, because the mean of its divisors is an integer number (500276325).

Almost surely, 2^1000552649 is an apocalyptic number.

It is an amenable number.

1000552649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000552649 is an equidigital number, since it uses as much as digits as its factorization.

1000552649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1000552649 is about 31631.5135426682. The cubic root of 1000552649 is about 1000.1841824081.

The spelling of 1000552649 in words is "one billion, five hundred fifty-two thousand, six hundred forty-nine".