65220252 has 24 divisors (see below), whose sum is σ = 154761600. Its totient is φ = 21371376.

The previous prime is 65220251. The next prime is 65220257. The reversal of 65220252 is 25202256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65220251) 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, 45352 + ... + 46767.

It is an arithmetic number, because the mean of its divisors is an integer number (6448400).

Almost surely, 2^65220252 is an apocalyptic number.

It is an amenable number.

65220252 is an abundant number, since it is smaller than the sum of its proper divisors (89541348).

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

65220252 is a wasteful number, since it uses less digits than its factorization.

65220252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92185 (or 92183 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 65220252 is about 8075.9056458084. The cubic root of 65220252 is about 402.5262038159.

The spelling of 65220252 in words is "sixty-five million, two hundred twenty thousand, two hundred fifty-two".