506221152 has 24 divisors (see below), whose sum is σ = 1328830776. Its totient is φ = 168740352.

The previous prime is 506221151. The next prime is 506221171. The reversal of 506221152 is 251122605.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506221151) 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, 2636473 + ... + 2636664.

It is an arithmetic number, because the mean of its divisors is an integer number (55367949).

Almost surely, 2^506221152 is an apocalyptic number.

It is an amenable number.

506221152 is an abundant number, since it is smaller than the sum of its proper divisors (822609624).

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

506221152 is a wasteful number, since it uses less digits than its factorization.

506221152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273150 (or 5273142 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 506221152 is about 22499.3589242005. The cubic root of 506221152 is about 796.9787880441.

Adding to 506221152 its reverse (251122605), we get a palindrome (757343757).

The spelling of 506221152 in words is "five hundred six million, two hundred twenty-one thousand, one hundred fifty-two".