55086782 has 16 divisors (see below), whose sum is σ = 84444000. Its totient is φ = 26943840.

The previous prime is 55086781. The next prime is 55086793. The reversal of 55086782 is 28768055.

It is a super-2 number, since 2×55086782² = 6069107102231048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55086781) 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, 23144 + ... + 25412.

It is an arithmetic number, because the mean of its divisors is an integer number (5277750).

Almost surely, 2^55086782 is an apocalyptic number.

55086782 is a deficient number, since it is larger than the sum of its proper divisors (29357218).

55086782 is a wasteful number, since it uses less digits than its factorization.

55086782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 55086782 is about 7422.0470222170. The cubic root of 55086782 is about 380.4951578300.

The spelling of 55086782 in words is "fifty-five million, eighty-six thousand, seven hundred eighty-two".