38553855 has 32 divisors (see below), whose sum is σ = 63232704. Its totient is φ = 20054016.

The previous prime is 38553839. The next prime is 38553871. The reversal of 38553855 is 55835583.

It is an interprime number because it is at equal distance from previous prime (38553839) and next prime (38553871).

It is not a de Polignac number, because 38553855 - 2⁴ = 38553839 is a prime.

It is a super-2 number, since 2×38553855² = 2972799470722050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149887 + ... + 150143.

It is an arithmetic number, because the mean of its divisors is an integer number (1976022).

Almost surely, 2^38553855 is an apocalyptic number.

38553855 is a deficient number, since it is larger than the sum of its proper divisors (24678849).

38553855 is a wasteful number, since it uses less digits than its factorization.

38553855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475.

The product of its digits is 360000, while the sum is 42.

The square root of 38553855 is about 6209.1750659810. The cubic root of 38553855 is about 337.8230432333.

The spelling of 38553855 in words is "thirty-eight million, five hundred fifty-three thousand, eight hundred fifty-five".