37056421 has 2 divisors, whose sum is σ = 37056422. Its totient is φ = 37056420.

The previous prime is 37056353. The next prime is 37056469. The reversal of 37056421 is 12465073.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25867396 + 11189025 = 5086^2 + 3345^2 .

It is a cyclic number.

It is not a de Polignac number, because 37056421 - 2¹⁵ = 37023653 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37056421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37056491) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18528210 + 18528211.

It is an arithmetic number, because the mean of its divisors is an integer number (18528211).

Almost surely, 2^37056421 is an apocalyptic number.

It is an amenable number.

37056421 is a deficient number, since it is larger than the sum of its proper divisors (1).

37056421 is an equidigital number, since it uses as much as digits as its factorization.

37056421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 37056421 is about 6087.3985412490. The cubic root of 37056421 is about 333.3914750802.

The spelling of 37056421 in words is "thirty-seven million, fifty-six thousand, four hundred twenty-one".