55551105500505 has 32 divisors (see below), whose sum is σ = 94111314148224. Its totient is φ = 27884119151616.

The previous prime is 55551105500503. The next prime is 55551105500507. The reversal of 55551105500505 is 50500550115555.

It is an interprime number because it is at equal distance from previous prime (55551105500503) and next prime (55551105500507).

It is not a de Polignac number, because 55551105500505 - 2¹ = 55551105500503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55551105500503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19132819 + ... + 21844151.

It is an arithmetic number, because the mean of its divisors is an integer number (2940978567132).

Almost surely, 2^{55551105500505} is an apocalyptic number.

It is an amenable number.

55551105500505 is a deficient number, since it is larger than the sum of its proper divisors (38560208647719).

55551105500505 is a wasteful number, since it uses less digits than its factorization.

55551105500505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791705.

The product of its (nonzero) digits is 390625, while the sum is 42.

The spelling of 55551105500505 in words is "fifty-five trillion, five hundred fifty-one billion, one hundred five million, five hundred thousand, five hundred five".