39228253 has 4 divisors (see below), whose sum is σ = 39240828. Its totient is φ = 39215680.

The previous prime is 39228247. The next prime is 39228283. The reversal of 39228253 is 35282293.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35282293 = 17 ⋅2075429.

It can be written as a sum of positive squares in 2 ways, for example, as 11539609 + 27688644 = 3397^2 + 5262^2 .

It is a cyclic number.

It is not a de Polignac number, because 39228253 - 2¹⁷ = 39097181 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 (39228283) 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, 2325 + ... + 9157.

It is an arithmetic number, because the mean of its divisors is an integer number (9810207).

Almost surely, 2^39228253 is an apocalyptic number.

It is an amenable number.

39228253 is a deficient number, since it is larger than the sum of its proper divisors (12575).

39228253 is an equidigital number, since it uses as much as digits as its factorization.

39228253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12574.

The product of its digits is 25920, while the sum is 34.

The square root of 39228253 is about 6263.2462030484. The cubic root of 39228253 is about 339.7814425829.

The spelling of 39228253 in words is "thirty-nine million, two hundred twenty-eight thousand, two hundred fifty-three".