36556997 has 2 divisors, whose sum is σ = 36556998. Its totient is φ = 36556996.

The previous prime is 36556973. The next prime is 36557011. The reversal of 36556997 is 79965563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25260676 + 11296321 = 5026^2 + 3361^2 .

It is a cyclic number.

It is not a de Polignac number, because 36556997 - 2¹⁴ = 36540613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36556957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18278498 + 18278499.

It is an arithmetic number, because the mean of its divisors is an integer number (18278499).

Almost surely, 2^36556997 is an apocalyptic number.

It is an amenable number.

36556997 is a deficient number, since it is larger than the sum of its proper divisors (1).

36556997 is an equidigital number, since it uses as much as digits as its factorization.

36556997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1530900, while the sum is 50.

The square root of 36556997 is about 6046.2382520043. The cubic root of 36556997 is about 331.8869461926.

The spelling of 36556997 in words is "thirty-six million, five hundred fifty-six thousand, nine hundred ninety-seven".