37250821 has 2 divisors, whose sum is σ = 37250822. Its totient is φ = 37250820.

The previous prime is 37250803. The next prime is 37250827. The reversal of 37250821 is 12805273.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32649796 + 4601025 = 5714^2 + 2145^2 .

It is a cyclic number.

It is not a de Polignac number, because 37250821 - 2¹¹ = 37248773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37250821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37250827) 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 as a sum of consecutive naturals, namely, 18625410 + 18625411.

It is an arithmetic number, because the mean of its divisors is an integer number (18625411).

Almost surely, 2^37250821 is an apocalyptic number.

It is an amenable number.

37250821 is a deficient number, since it is larger than the sum of its proper divisors (1).

37250821 is an equidigital number, since it uses as much as digits as its factorization.

37250821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 37250821 is about 6103.3450664369. The cubic root of 37250821 is about 333.9734551675.

The spelling of 37250821 in words is "thirty-seven million, two hundred fifty thousand, eight hundred twenty-one".