37053221 has 2 divisors, whose sum is σ = 37053222. Its totient is φ = 37053220.

The previous prime is 37053199. The next prime is 37053227. The reversal of 37053221 is 12235073.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35832196 + 1221025 = 5986^2 + 1105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37053221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37053227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18526610 + 18526611.

It is an arithmetic number, because the mean of its divisors is an integer number (18526611).

Almost surely, 2^37053221 is an apocalyptic number.

It is an amenable number.

37053221 is a deficient number, since it is larger than the sum of its proper divisors (1).

37053221 is an equidigital number, since it uses as much as digits as its factorization.

37053221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 37053221 is about 6087.1356975182. The cubic root of 37053221 is about 333.3818781521.

Adding to 37053221 its reverse (12235073), we get a palindrome (49288294).

The spelling of 37053221 in words is "thirty-seven million, fifty-three thousand, two hundred twenty-one".