38553649 has 2 divisors, whose sum is σ = 38553650. Its totient is φ = 38553648.

The previous prime is 38553629. The next prime is 38553661. The reversal of 38553649 is 94635583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21455424 + 17098225 = 4632^2 + 4135^2 .

It is a cyclic number.

It is not a de Polignac number, because 38553649 - 2⁷ = 38553521 is a prime.

It is not a weakly prime, because it can be changed into another prime (38553629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19276824 + 19276825.

It is an arithmetic number, because the mean of its divisors is an integer number (19276825).

Almost surely, 2^38553649 is an apocalyptic number.

It is an amenable number.

38553649 is a deficient number, since it is larger than the sum of its proper divisors (1).

38553649 is an equidigital number, since it uses as much as digits as its factorization.

38553649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The square root of 38553649 is about 6209.1584776039. The cubic root of 38553649 is about 337.8224415497.

The spelling of 38553649 in words is "thirty-eight million, five hundred fifty-three thousand, six hundred forty-nine".