653223520 has 48 divisors (see below), whose sum is σ = 1544861808. Its totient is φ = 261015040.

The previous prime is 653223517. The next prime is 653223523. The reversal of 653223520 is 25322356.

It is an interprime number because it is at equal distance from previous prime (653223517) and next prime (653223523).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653223523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226890 + ... + 229750.

It is an arithmetic number, because the mean of its divisors is an integer number (32184621).

Almost surely, 2^653223520 is an apocalyptic number.

It is an amenable number.

653223520 is an abundant number, since it is smaller than the sum of its proper divisors (891638288).

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

653223520 is a wasteful number, since it uses less digits than its factorization.

653223520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303 (or 4295 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 653223520 is about 25558.2378109290. The cubic root of 653223520 is about 867.6687134315.

Adding to 653223520 its reverse (25322356), we get a palindrome (678545876).

The spelling of 653223520 in words is "six hundred fifty-three million, two hundred twenty-three thousand, five hundred twenty".