55611858628272 has 20 divisors (see below), whose sum is σ = 143663968123160. Its totient is φ = 18537286209408.

The previous prime is 55611858628231. The next prime is 55611858628273. The reversal of 55611858628272 is 27282685811655.

It is not an unprimeable number, because it can be changed into a prime (55611858628273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579290193997 + ... + 579290194092.

It is an arithmetic number, because the mean of its divisors is an integer number (7183198406158).

Almost surely, 2^{55611858628272} is an apocalyptic number.

It is an amenable number.

55611858628272 is an abundant number, since it is smaller than the sum of its proper divisors (88052109494888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55611858628272 is a wasteful number, since it uses less digits than its factorization.

55611858628272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158580388100 (or 1158580388094 counting only the distinct ones).

The product of its digits is 129024000, while the sum is 66.

The spelling of 55611858628272 in words is "fifty-five trillion, six hundred eleven billion, eight hundred fifty-eight million, six hundred twenty-eight thousand, two hundred seventy-two".