55150611655505 has 16 divisors (see below), whose sum is σ = 66354800538240. Its totient is φ = 44004519057408.

The previous prime is 55150611655499. The next prime is 55150611655523. The reversal of 55150611655505 is 50555611605155.

It is a cyclic number.

It is not a de Polignac number, because 55150611655505 - 2²⁶ = 55150544546641 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1326404 + ... + 10585866.

It is an arithmetic number, because the mean of its divisors is an integer number (4147175033640).

Almost surely, 2^{55150611655505} is an apocalyptic number.

It is an amenable number.

55150611655505 is a deficient number, since it is larger than the sum of its proper divisors (11204188882735).

55150611655505 is a wasteful number, since it uses less digits than its factorization.

55150611655505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9262600.

The product of its (nonzero) digits is 2812500, while the sum is 50.

The spelling of 55150611655505 in words is "fifty-five trillion, one hundred fifty billion, six hundred eleven million, six hundred fifty-five thousand, five hundred five".