53226720000 has 810 divisors, whose sum is σ = 204393657468. Its totient is φ = 13810176000.

The previous prime is 53226719999. The next prime is 53226720011. The reversal of 53226720000 is 2762235.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (810).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 1438559982 + ... + 1438560018.

Almost surely, 2^53226720000 is an apocalyptic number.

53226720000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53226720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102196828734).

53226720000 is an abundant number, since it is smaller than the sum of its proper divisors (151166937468).

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

53226720000 is an frugal number, since it uses more digits than its factorization.

53226720000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

Multiplying 53226720000 by its sum of digits (27), we get a square (1437121440000 = 1198800²).

53226720000 divided by its sum of digits (27) gives a square (1971360000 = 44400²).

The spelling of 53226720000 in words is "fifty-three billion, two hundred twenty-six million, seven hundred twenty thousand".