36399551 has 2 divisors, whose sum is σ = 36399552. Its totient is φ = 36399550.

The previous prime is 36399523. The next prime is 36399563. The reversal of 36399551 is 15599363.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36399551 - 2¹⁴ = 36383167 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 36399499 and 36399508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36396551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18199775 + 18199776.

It is an arithmetic number, because the mean of its divisors is an integer number (18199776).

Almost surely, 2^36399551 is an apocalyptic number.

36399551 is a deficient number, since it is larger than the sum of its proper divisors (1).

36399551 is an equidigital number, since it uses as much as digits as its factorization.

36399551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 109350, while the sum is 41.

The square root of 36399551 is about 6033.2040409719. The cubic root of 36399551 is about 331.4097965927.

The spelling of 36399551 in words is "thirty-six million, three hundred ninety-nine thousand, five hundred fifty-one".