55120520061201 has 16 divisors (see below), whose sum is σ = 87645050532864. Its totient is φ = 30127986120144.

The previous prime is 55120520061149. The next prime is 55120520061223. The reversal of 55120520061201 is 10216002502155.

It is not a de Polignac number, because 55120520061201 - 2³³ = 55111930126609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55120520061001) 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, 57060579291 + ... + 57060580256.

It is an arithmetic number, because the mean of its divisors is an integer number (5477815658304).

Almost surely, 2^{55120520061201} is an apocalyptic number.

It is an amenable number.

55120520061201 is a deficient number, since it is larger than the sum of its proper divisors (32524530471663).

55120520061201 is a wasteful number, since it uses less digits than its factorization.

55120520061201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114121159580.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 55120520061201 its reverse (10216002502155), we get a palindrome (65336522563356).

The spelling of 55120520061201 in words is "fifty-five trillion, one hundred twenty billion, five hundred twenty million, sixty-one thousand, two hundred one".