55816814 has 32 divisors (see below), whose sum is σ = 93358656. Its totient is φ = 24893440.

The previous prime is 55816811. The next prime is 55816819. The reversal of 55816814 is 41861855.

It is a super-2 number, since 2×55816814² = 6231033450221192, 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 (55816811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106874 + ... + 107394.

It is an arithmetic number, because the mean of its divisors is an integer number (2917458).

Almost surely, 2^55816814 is an apocalyptic number.

55816814 is a deficient number, since it is larger than the sum of its proper divisors (37541842).

55816814 is a wasteful number, since it uses less digits than its factorization.

55816814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700.

The product of its digits is 38400, while the sum is 38.

The square root of 55816814 is about 7471.0651181742. The cubic root of 55816814 is about 382.1686115480.

The spelling of 55816814 in words is "fifty-five million, eight hundred sixteen thousand, eight hundred fourteen".