55125055205 has 32 divisors (see below), whose sum is σ = 77578076160. Its totient is φ = 37172761920.

The previous prime is 55125055199. The next prime is 55125055207. The reversal of 55125055205 is 50255052155.

It is not a de Polignac number, because 55125055205 - 2⁴ = 55125055189 is a prime.

It is a super-2 number, since 2×55125055205² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55125055207) 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, 512069 + ... + 610298.

It is an arithmetic number, because the mean of its divisors is an integer number (2424314880).

Almost surely, 2^55125055205 is an apocalyptic number.

55125055205 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55125055205 is a deficient number, since it is larger than the sum of its proper divisors (22453020955).

55125055205 is a wasteful number, since it uses less digits than its factorization.

55125055205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122449.

The product of its (nonzero) digits is 62500, while the sum is 35.

The spelling of 55125055205 in words is "fifty-five billion, one hundred twenty-five million, fifty-five thousand, two hundred five".