55515565605 has 8 divisors (see below), whose sum is σ = 88824904992. Its totient is φ = 29608301648.

The previous prime is 55515565591. The next prime is 55515565613. The reversal of 55515565605 is 50656551555.

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

It is a cyclic number.

It is not a de Polignac number, because 55515565605 - 2¹² = 55515561509 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1850518839 + ... + 1850518868.

It is an arithmetic number, because the mean of its divisors is an integer number (11103113124).

Almost surely, 2^55515565605 is an apocalyptic number.

It is an amenable number.

55515565605 is a deficient number, since it is larger than the sum of its proper divisors (33309339387).

55515565605 is a wasteful number, since it uses less digits than its factorization.

55515565605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701037715.

The product of its (nonzero) digits is 2812500, while the sum is 48.

The spelling of 55515565605 in words is "fifty-five billion, five hundred fifteen million, five hundred sixty-five thousand, six hundred five".