55123245345 has 32 divisors (see below), whose sum is σ = 100822007808. Its totient is φ = 25192893888.

The previous prime is 55123245313. The next prime is 55123245347. The reversal of 55123245345 is 54354232155.

It is not a de Polignac number, because 55123245345 - 2⁵ = 55123245313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55123245347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369732 + ... + 496938.

It is an arithmetic number, because the mean of its divisors is an integer number (3150687744).

Almost surely, 2^55123245345 is an apocalyptic number.

It is an amenable number.

55123245345 is a deficient number, since it is larger than the sum of its proper divisors (45698762463).

55123245345 is a wasteful number, since it uses less digits than its factorization.

55123245345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131349.

The product of its digits is 360000, while the sum is 39.

The spelling of 55123245345 in words is "fifty-five billion, one hundred twenty-three million, two hundred forty-five thousand, three hundred forty-five".