38037521 has 2 divisors, whose sum is σ = 38037522. Its totient is φ = 38037520.

The previous prime is 38037511. The next prime is 38037533. The reversal of 38037521 is 12573083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34939921 + 3097600 = 5911^2 + 1760^2 .

It is an emirp because it is prime and its reverse (12573083) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38037521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38037511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19018760 + 19018761.

It is an arithmetic number, because the mean of its divisors is an integer number (19018761).

Almost surely, 2^38037521 is an apocalyptic number.

It is an amenable number.

38037521 is a deficient number, since it is larger than the sum of its proper divisors (1).

38037521 is an equidigital number, since it uses as much as digits as its factorization.

38037521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 38037521 is about 6167.4566070626. The cubic root of 38037521 is about 336.3081575078.

The spelling of 38037521 in words is "thirty-eight million, thirty-seven thousand, five hundred twenty-one".