55909016 has 8 divisors (see below), whose sum is σ = 104829420. Its totient is φ = 27954504.

The previous prime is 55909003. The next prime is 55909019. The reversal of 55909016 is 61090955.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55909019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494306 + ... + 3494321.

Almost surely, 2^55909016 is an apocalyptic number.

It is an amenable number.

55909016 is a deficient number, since it is larger than the sum of its proper divisors (48920404).

55909016 is a wasteful number, since it uses less digits than its factorization.

55909016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6988633 (or 6988629 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 55909016 is about 7477.2331781214. The cubic root of 55909016 is about 382.3789264660.

The spelling of 55909016 in words is "fifty-five million, nine hundred nine thousand, sixteen".