36605557 has 2 divisors, whose sum is σ = 36605558. Its totient is φ = 36605556.

The previous prime is 36605549. The next prime is 36605629. The reversal of 36605557 is 75550663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34000561 + 2604996 = 5831^2 + 1614^2 .

It is a cyclic number.

It is not a de Polignac number, because 36605557 - 2³ = 36605549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36602557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18302778 + 18302779.

It is an arithmetic number, because the mean of its divisors is an integer number (18302779).

Almost surely, 2^36605557 is an apocalyptic number.

It is an amenable number.

36605557 is a deficient number, since it is larger than the sum of its proper divisors (1).

36605557 is an equidigital number, since it uses as much as digits as its factorization.

36605557 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 37.

The square root of 36605557 is about 6050.2526393532. The cubic root of 36605557 is about 332.0338337078.

The spelling of 36605557 in words is "thirty-six million, six hundred five thousand, five hundred fifty-seven".