55555055513 has 4 divisors (see below), whose sum is σ = 56094425088. Its totient is φ = 55015685940.

The previous prime is 55555055503. The next prime is 55555055539. The reversal of 55555055513 is 31555055555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55555055513 - 2²⁴ = 55538278297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55555055503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269684633 + ... + 269684838.

It is an arithmetic number, because the mean of its divisors is an integer number (14023606272).

Almost surely, 2^55555055513 is an apocalyptic number.

It is an amenable number.

55555055513 is a deficient number, since it is larger than the sum of its proper divisors (539369575).

55555055513 is a wasteful number, since it uses less digits than its factorization.

55555055513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539369574.

The product of its (nonzero) digits is 1171875, while the sum is 44.

The spelling of 55555055513 in words is "fifty-five billion, five hundred fifty-five million, fifty-five thousand, five hundred thirteen".