55223622739320 has 256 divisors, whose sum is σ = 196241588352000. Its totient is φ = 12163976810496.

The previous prime is 55223622739279. The next prime is 55223622739331. The reversal of 55223622739320 is 2393722632255.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10572996 + ... + 14907564.

It is an arithmetic number, because the mean of its divisors is an integer number (766568704500).

Almost surely, 2^{55223622739320} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55223622739320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98120794176000).

55223622739320 is an abundant number, since it is smaller than the sum of its proper divisors (141017965612680).

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

55223622739320 is a wasteful number, since it uses less digits than its factorization.

55223622739320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335142 (or 4335138 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 51.

The spelling of 55223622739320 in words is "fifty-five trillion, two hundred twenty-three billion, six hundred twenty-two million, seven hundred thirty-nine thousand, three hundred twenty".