55067816 has 8 divisors (see below), whose sum is σ = 103252170. Its totient is φ = 27533904.

The previous prime is 55067809. The next prime is 55067869. The reversal of 55067816 is 61876055.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 46922500 + 8145316 = 6850^2 + 2854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 55067816.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3441731 + ... + 3441746.

Almost surely, 2^55067816 is an apocalyptic number.

It is an amenable number.

55067816 is a deficient number, since it is larger than the sum of its proper divisors (48184354).

55067816 is a wasteful number, since it uses less digits than its factorization.

55067816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6883483 (or 6883479 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 55067816 is about 7420.7692323640. The cubic root of 55067816 is about 380.4514855293.

The spelling of 55067816 in words is "fifty-five million, sixty-seven thousand, eight hundred sixteen".