55214250720771 has 64 divisors (see below), whose sum is σ = 75020896742400. Its totient is φ = 36117931745280.

The previous prime is 55214250720721. The next prime is 55214250720773. The reversal of 55214250720771 is 17702705241255.

It is not a de Polignac number, because 55214250720771 - 2³³ = 55205660786179 is a prime.

It is a super-4 number, since 4×55214250720771⁴ (a number of 56 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 55214250720771.

It is not an unprimeable number, because it can be changed into a prime (55214250720773) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10455261651 + ... + 10455266931.

It is an arithmetic number, because the mean of its divisors is an integer number (1172201511600).

Almost surely, 2^{55214250720771} is an apocalyptic number.

55214250720771 is a deficient number, since it is larger than the sum of its proper divisors (19806646021629).

55214250720771 is a wasteful number, since it uses less digits than its factorization.

55214250720771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6444.

The product of its (nonzero) digits is 1372000, while the sum is 48.

The spelling of 55214250720771 in words is "fifty-five trillion, two hundred fourteen billion, two hundred fifty million, seven hundred twenty thousand, seven hundred seventy-one".