38628553 has 4 divisors (see below), whose sum is σ = 38712448. Its totient is φ = 38544660.

The previous prime is 38628547. The next prime is 38628559. The reversal of 38628553 is 35582683.

It is a happy number.

38628553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (38628547) and next prime (38628559).

It is a cyclic number.

It is not a de Polignac number, because 38628553 - 2⁵ = 38628521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38628559) 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 3 ways as a sum of consecutive naturals, for example, 41253 + ... + 42178.

It is an arithmetic number, because the mean of its divisors is an integer number (9678112).

Almost surely, 2^38628553 is an apocalyptic number.

It is an amenable number.

38628553 is a deficient number, since it is larger than the sum of its proper divisors (83895).

38628553 is an equidigital number, since it uses as much as digits as its factorization.

38628553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83894.

The product of its digits is 172800, while the sum is 40.

The square root of 38628553 is about 6215.1872859955. The cubic root of 38628553 is about 338.0410795863.

The spelling of 38628553 in words is "thirty-eight million, six hundred twenty-eight thousand, five hundred fifty-three".