55806365 has 8 divisors (see below), whose sum is σ = 67582680. Its totient is φ = 44235072.

The previous prime is 55806313. The next prime is 55806367. The reversal of 55806365 is 56360855.

It can be written as a sum of positive squares in 4 ways, for example, as 10621081 + 45185284 = 3259^2 + 6722^2 .

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 55806365 - 2⁶ = 55806301 is a prime.

It is a super-2 number, since 2×55806365² = 6228700749026450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55806367) 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, 50654 + ... + 51743.

It is an arithmetic number, because the mean of its divisors is an integer number (8447835).

Almost surely, 2^55806365 is an apocalyptic number.

It is an amenable number.

55806365 is a deficient number, since it is larger than the sum of its proper divisors (11776315).

55806365 is a wasteful number, since it uses less digits than its factorization.

55806365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102511.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 55806365 is about 7470.3657875636. The cubic root of 55806365 is about 382.1447625275.

The spelling of 55806365 in words is "fifty-five million, eight hundred six thousand, three hundred sixty-five".