55214253727728 has 80 divisors (see below), whose sum is σ = 143441832885120. Its totient is φ = 18300890587392.

The previous prime is 55214253727727. The next prime is 55214253727799. The reversal of 55214253727728 is 82772735241255.

It is a super-2 number, since 2×55214253727728² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55214253727727) 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, 158976150 + ... + 159323082.

It is an arithmetic number, because the mean of its divisors is an integer number (1793022911064).

Almost surely, 2^{55214253727728} is an apocalyptic number.

It is an amenable number.

55214253727728 is an abundant number, since it is smaller than the sum of its proper divisors (88227579157392).

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

55214253727728 is a wasteful number, since it uses less digits than its factorization.

55214253727728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365646 (or 365640 counting only the distinct ones).

The product of its digits is 65856000, while the sum is 60.

The spelling of 55214253727728 in words is "fifty-five trillion, two hundred fourteen billion, two hundred fifty-three million, seven hundred twenty-seven thousand, seven hundred twenty-eight".