55208765 has 8 divisors (see below), whose sum is σ = 66290400. Its totient is φ = 44140432.

The previous prime is 55208759. The next prime is 55208831. The reversal of 55208765 is 56780255.

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 55208765 - 2⁶ = 55208701 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14822 + ... + 18168.

It is an arithmetic number, because the mean of its divisors is an integer number (8286300).

Almost surely, 2^55208765 is an apocalyptic number.

It is an amenable number.

55208765 is a deficient number, since it is larger than the sum of its proper divisors (11081635).

55208765 is a wasteful number, since it uses less digits than its factorization.

55208765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6651.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 55208765 is about 7430.2600896604. The cubic root of 55208765 is about 380.7758042445.

The spelling of 55208765 in words is "fifty-five million, two hundred eight thousand, seven hundred sixty-five".