36502681 has 2 divisors, whose sum is σ = 36502682. Its totient is φ = 36502680.

The previous prime is 36502673. The next prime is 36502703. The reversal of 36502681 is 18620563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36000000 + 502681 = 6000^2 + 709^2 .

It is a cyclic number.

It is not a de Polignac number, because 36502681 - 2³ = 36502673 is a prime.

It is a super-2 number, since 2×36502681² = 2664891440375522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36502601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18251340 + 18251341.

It is an arithmetic number, because the mean of its divisors is an integer number (18251341).

Almost surely, 2^36502681 is an apocalyptic number.

It is an amenable number.

36502681 is a deficient number, since it is larger than the sum of its proper divisors (1).

36502681 is an equidigital number, since it uses as much as digits as its factorization.

36502681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 36502681 is about 6041.7448638618. The cubic root of 36502681 is about 331.7224933453.

It can be divided in two parts, 36 and 502681, that multiplied together give a square (18096516 = 4254²).

The spelling of 36502681 in words is "thirty-six million, five hundred two thousand, six hundred eighty-one".