55665424 has 10 divisors (see below), whose sum is σ = 107851790. Its totient is φ = 27832704.

The previous prime is 55665419. The next prime is 55665431. The reversal of 55665424 is 42456655.

It can be written as a sum of positive squares in only one way, i.e., 45805824 + 9859600 = 6768^2 + 3140^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1739529 + ... + 1739560.

It is an arithmetic number, because the mean of its divisors is an integer number (10785179).

Almost surely, 2^55665424 is an apocalyptic number.

It is an amenable number.

55665424 is a deficient number, since it is larger than the sum of its proper divisors (52186366).

55665424 is a wasteful number, since it uses less digits than its factorization.

55665424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479097 (or 3479091 counting only the distinct ones).

The product of its digits is 144000, while the sum is 37.

The square root of 55665424 is about 7460.9264840233. The cubic root of 55665424 is about 381.8227844975.

The spelling of 55665424 in words is "fifty-five million, six hundred sixty-five thousand, four hundred twenty-four".