36521801 has 2 divisors, whose sum is σ = 36521802. Its totient is φ = 36521800.

The previous prime is 36521789. The next prime is 36521809. The reversal of 36521801 is 10812563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35093776 + 1428025 = 5924^2 + 1195^2 .

It is a cyclic number.

It is not a de Polignac number, because 36521801 - 2²² = 32327497 is a prime.

It is not a weakly prime, because it can be changed into another prime (36521809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18260900 + 18260901.

It is an arithmetic number, because the mean of its divisors is an integer number (18260901).

Almost surely, 2^36521801 is an apocalyptic number.

It is an amenable number.

36521801 is a deficient number, since it is larger than the sum of its proper divisors (1).

36521801 is an equidigital number, since it uses as much as digits as its factorization.

36521801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 36521801 is about 6043.3269810594. The cubic root of 36521801 is about 331.7804016671.

The spelling of 36521801 in words is "thirty-six million, five hundred twenty-one thousand, eight hundred one".