55500055500505 has 32 divisors (see below), whose sum is σ = 83855966646528. Its totient is φ = 34254888288000.

The previous prime is 55500055500499. The next prime is 55500055500509. The reversal of 55500055500505 is 50500555000555.

It is a de Polignac number, because none of the positive numbers 2^k-55500055500505 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55500055500509) 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, 713604622 + ... + 713682391.

It is an arithmetic number, because the mean of its divisors is an integer number (2620498957704).

Almost surely, 2^{55500055500505} is an apocalyptic number.

55500055500505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55500055500505 is a deficient number, since it is larger than the sum of its proper divisors (28355911146023).

55500055500505 is a wasteful number, since it uses less digits than its factorization.

55500055500505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427287137.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 55500055500505 in words is "fifty-five trillion, five hundred billion, fifty-five million, five hundred thousand, five hundred five".