37550561 has 2 divisors, whose sum is σ = 37550562. Its totient is φ = 37550560.

The previous prime is 37550537. The next prime is 37550581. The reversal of 37550561 is 16505573.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 11182336 = 5135^2 + 3344^2 .

It is a cyclic number.

It is not a de Polignac number, because 37550561 - 2⁶ = 37550497 is a prime.

It is not a weakly prime, because it can be changed into another prime (37550531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18775280 + 18775281.

It is an arithmetic number, because the mean of its divisors is an integer number (18775281).

Almost surely, 2^37550561 is an apocalyptic number.

It is an amenable number.

37550561 is a deficient number, since it is larger than the sum of its proper divisors (1).

37550561 is an equidigital number, since it uses as much as digits as its factorization.

37550561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 37550561 is about 6127.8512547222. The cubic root of 37550561 is about 334.8668394801.

The spelling of 37550561 in words is "thirty-seven million, five hundred fifty thousand, five hundred sixty-one".