38255021 has 4 divisors (see below), whose sum is σ = 43720032. Its totient is φ = 32790012.

The previous prime is 38255011. The next prime is 38255027. The reversal of 38255021 is 12055283.

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 a cyclic number.

It is not a de Polignac number, because 38255021 - 2¹⁰ = 38253997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38255027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2732495 + ... + 2732508.

It is an arithmetic number, because the mean of its divisors is an integer number (10930008).

Almost surely, 2^38255021 is an apocalyptic number.

It is an amenable number.

38255021 is a deficient number, since it is larger than the sum of its proper divisors (5465011).

38255021 is an equidigital number, since it uses as much as digits as its factorization.

38255021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465010.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 38255021 is about 6185.0643488973. The cubic root of 38255021 is about 336.9479472416.

The spelling of 38255021 in words is "thirty-eight million, two hundred fifty-five thousand, twenty-one".