38512257 has 16 divisors (see below), whose sum is σ = 59064192. Its totient is φ = 21864960.

The previous prime is 38512247. The next prime is 38512273. The reversal of 38512257 is 75221583.

It is not a de Polignac number, because 38512257 - 2⁴ = 38512241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38512247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2544 + ... + 9137.

It is an arithmetic number, because the mean of its divisors is an integer number (3691512).

Almost surely, 2^38512257 is an apocalyptic number.

It is an amenable number.

38512257 is a deficient number, since it is larger than the sum of its proper divisors (20551935).

38512257 is a wasteful number, since it uses less digits than its factorization.

38512257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11848.

The product of its digits is 16800, while the sum is 33.

The square root of 38512257 is about 6205.8244416032. The cubic root of 38512257 is about 337.7015005230.

The spelling of 38512257 in words is "thirty-eight million, five hundred twelve thousand, two hundred fifty-seven".