55540306121210 has 32 divisors (see below), whose sum is σ = 100069146593280. Its totient is φ = 22194658662912.

The previous prime is 55540306121191. The next prime is 55540306121221. The reversal of 55540306121210 is 1212160304555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261828371 + ... + 262040409.

It is an arithmetic number, because the mean of its divisors is an integer number (3127160831040).

Almost surely, 2^{55540306121210} is an apocalyptic number.

55540306121210 is a deficient number, since it is larger than the sum of its proper divisors (44528840472070).

55540306121210 is a wasteful number, since it uses less digits than its factorization.

55540306121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237230.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 55540306121210 its reverse (1212160304555), we get a palindrome (56752466425765).

The spelling of 55540306121210 in words is "fifty-five trillion, five hundred forty billion, three hundred six million, one hundred twenty-one thousand, two hundred ten".