38646553 has 12 divisors (see below), whose sum is σ = 43853824. Its totient is φ = 33996600.

The previous prime is 38646547. The next prime is 38646557. The reversal of 38646553 is 35564683.

38646553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38646553 - 2⁵ = 38646521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38646557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1401 + ... + 8902.

Almost surely, 2^38646553 is an apocalyptic number.

It is an amenable number.

38646553 is a deficient number, since it is larger than the sum of its proper divisors (5207271).

38646553 is a wasteful number, since it uses less digits than its factorization.

38646553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356 (or 10345 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 38646553 is about 6216.6351831196. The cubic root of 38646553 is about 338.0935778386.

The spelling of 38646553 in words is "thirty-eight million, six hundred forty-six thousand, five hundred fifty-three".