36551861 has 8 divisors (see below), whose sum is σ = 38016000. Its totient is φ = 35101360.

The previous prime is 36551843. The next prime is 36551863. The reversal of 36551861 is 16815563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36551861 - 2¹⁰ = 36550837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36551863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2240 + ... + 8838.

It is an arithmetic number, because the mean of its divisors is an integer number (4752000).

Almost surely, 2^36551861 is an apocalyptic number.

It is an amenable number.

36551861 is a deficient number, since it is larger than the sum of its proper divisors (1464139).

36551861 is a wasteful number, since it uses less digits than its factorization.

36551861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819.

The product of its digits is 21600, while the sum is 35.

The square root of 36551861 is about 6045.8135101903. The cubic root of 36551861 is about 331.8714028737.

The spelling of 36551861 in words is "thirty-six million, five hundred fifty-one thousand, eight hundred sixty-one".