55661614 has 16 divisors (see below), whose sum is σ = 87188400. Its totient is φ = 26617024.

The previous prime is 55661611. The next prime is 55661629. The reversal of 55661614 is 41616655.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 55661614.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55661611) 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, 1722 + ... + 10690.

It is an arithmetic number, because the mean of its divisors is an integer number (5449275).

Almost surely, 2^55661614 is an apocalyptic number.

55661614 is a deficient number, since it is larger than the sum of its proper divisors (31526786).

55661614 is a wasteful number, since it uses less digits than its factorization.

55661614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9107.

The product of its digits is 21600, while the sum is 34.

The square root of 55661614 is about 7460.6711494342. The cubic root of 55661614 is about 381.8140730576.

The spelling of 55661614 in words is "fifty-five million, six hundred sixty-one thousand, six hundred fourteen".