53220992 has 32 divisors (see below), whose sum is σ = 115668000. Its totient is φ = 24190720.

The previous prime is 53220983. The next prime is 53220997. The reversal of 53220992 is 29902235.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (53220997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17492 + ... + 20307.

It is an arithmetic number, because the mean of its divisors is an integer number (3614625).

Almost surely, 2^53220992 is an apocalyptic number.

It is an amenable number.

53220992 is an abundant number, since it is smaller than the sum of its proper divisors (62447008).

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

53220992 is a wasteful number, since it uses less digits than its factorization.

53220992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37824 (or 37812 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 53220992 is about 7295.2718934938. The cubic root of 53220992 is about 376.1499326605.

The spelling of 53220992 in words is "fifty-three million, two hundred twenty thousand, nine hundred ninety-two".