238553655 has 16 divisors (see below), whose sum is σ = 383975424. Its totient is φ = 126465440.

The previous prime is 238553593. The next prime is 238553669. The reversal of 238553655 is 556355832.

It is not a de Polignac number, because 238553655 - 2⁷ = 238553527 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 45111 + ... + 50120.

It is an arithmetic number, because the mean of its divisors is an integer number (23998464).

Almost surely, 2^238553655 is an apocalyptic number.

238553655 is a deficient number, since it is larger than the sum of its proper divisors (145421769).

238553655 is a wasteful number, since it uses less digits than its factorization.

238553655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95406.

The product of its digits is 540000, while the sum is 42.

The square root of 238553655 is about 15445.1822585556. The cubic root of 238553655 is about 620.1956155210.

The spelling of 238553655 in words is "two hundred thirty-eight million, five hundred fifty-three thousand, six hundred fifty-five".