55426133209 has 16 divisors (see below), whose sum is σ = 58819799808. Its totient is φ = 52047436032.

The previous prime is 55426133131. The next prime is 55426133281. The reversal of 55426133209 is 90233162455.

It is a cyclic number.

It is not a de Polignac number, because 55426133209 - 2³¹ = 53278649561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55426133299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22649424 + ... + 22651870.

It is an arithmetic number, because the mean of its divisors is an integer number (3676237488).

Almost surely, 2^55426133209 is an apocalyptic number.

It is an amenable number.

55426133209 is a deficient number, since it is larger than the sum of its proper divisors (3393666599).

55426133209 is a wasteful number, since it uses less digits than its factorization.

55426133209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4944.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 55426133209 in words is "fifty-five billion, four hundred twenty-six million, one hundred thirty-three thousand, two hundred nine".