52229720644 has 24 divisors (see below), whose sum is σ = 93737387520. Its totient is φ = 25452260736.

The previous prime is 52229720629. The next prime is 52229720663. The reversal of 52229720644 is 44602792225.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 52229720644.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536277 + ... + 626140.

It is an arithmetic number, because the mean of its divisors is an integer number (3905724480).

Almost surely, 2^52229720644 is an apocalyptic number.

It is an amenable number.

52229720644 is a deficient number, since it is larger than the sum of its proper divisors (41507666876).

52229720644 is a wasteful number, since it uses less digits than its factorization.

52229720644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162707 (or 1162705 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 52229720644 in words is "fifty-two billion, two hundred twenty-nine million, seven hundred twenty thousand, six hundred forty-four".