55920286 has 8 divisors (see below), whose sum is σ = 85255704. Its totient is φ = 27501720.

The previous prime is 55920257. The next prime is 55920289. The reversal of 55920286 is 68202955.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55920289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229060 + ... + 229303.

It is an arithmetic number, because the mean of its divisors is an integer number (10656963).

Almost surely, 2^55920286 is an apocalyptic number.

55920286 is a deficient number, since it is larger than the sum of its proper divisors (29335418).

55920286 is a wasteful number, since it uses less digits than its factorization.

55920286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458426.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 55920286 is about 7477.9867611544. The cubic root of 55920286 is about 382.4046177366.

The spelling of 55920286 in words is "fifty-five million, nine hundred twenty thousand, two hundred eighty-six".