55660238 has 8 divisors (see below), whose sum is σ = 83536920. Its totient is φ = 27814600.

The previous prime is 55660219. The next prime is 55660259. The reversal of 55660238 is 83206655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55660198 and 55660207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2588 + ... + 10863.

It is an arithmetic number, because the mean of its divisors is an integer number (10442115).

Almost surely, 2^55660238 is an apocalyptic number.

55660238 is a deficient number, since it is larger than the sum of its proper divisors (27876682).

55660238 is a wasteful number, since it uses less digits than its factorization.

55660238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15522.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 55660238 is about 7460.5789319596. The cubic root of 55660238 is about 381.8109267810.

The spelling of 55660238 in words is "fifty-five million, six hundred sixty thousand, two hundred thirty-eight".