37130552561 has 2 divisors, whose sum is σ = 37130552562. Its totient is φ = 37130552560.

The previous prime is 37130552531. The next prime is 37130552581. The reversal of 37130552561 is 16525503173.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33806338225 + 3324214336 = 183865^2 + 57656^2 .

It is a cyclic number.

It is not a de Polignac number, because 37130552561 - 2²² = 37126358257 is a prime.

It is not a weakly prime, because it can be changed into another prime (37130552531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18565276280 + 18565276281.

It is an arithmetic number, because the mean of its divisors is an integer number (18565276281).

Almost surely, 2^37130552561 is an apocalyptic number.

It is an amenable number.

37130552561 is a deficient number, since it is larger than the sum of its proper divisors (1).

37130552561 is an equidigital number, since it uses as much as digits as its factorization.

37130552561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94500, while the sum is 38.

The spelling of 37130552561 in words is "thirty-seven billion, one hundred thirty million, five hundred fifty-two thousand, five hundred sixty-one".