55511556651005 has 32 divisors (see below), whose sum is σ = 83659488864000. Its totient is φ = 35136985294656.

The previous prime is 55511556650993. The next prime is 55511556651059. The reversal of 55511556651005 is 50015665511555.

It is not a de Polignac number, because 55511556651005 - 2⁶ = 55511556650941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1244910575 + ... + 1244955164.

It is an arithmetic number, because the mean of its divisors is an integer number (2614359027000).

Almost surely, 2^{55511556651005} is an apocalyptic number.

It is an amenable number.

55511556651005 is a deficient number, since it is larger than the sum of its proper divisors (28147932212995).

55511556651005 is a wasteful number, since it uses less digits than its factorization.

55511556651005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489865778 (or 2489865764 counting only the distinct ones).

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

The spelling of 55511556651005 in words is "fifty-five trillion, five hundred eleven billion, five hundred fifty-six million, six hundred fifty-one thousand, five".