220131552 has 24 divisors (see below), whose sum is σ = 577845576. Its totient is φ = 73377152.

The previous prime is 220131539. The next prime is 220131559. The reversal of 220131552 is 255131022.

220131552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220131559) 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, 1146423 + ... + 1146614.

It is an arithmetic number, because the mean of its divisors is an integer number (24076899).

Almost surely, 2^220131552 is an apocalyptic number.

It is an amenable number.

220131552 is an abundant number, since it is smaller than the sum of its proper divisors (357714024).

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

220131552 is a wasteful number, since it uses less digits than its factorization.

220131552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293050 (or 2293042 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 220131552 is about 14836.8309284699. The cubic root of 220131552 is about 603.8013761475.

Adding to 220131552 its reverse (255131022), we get a palindrome (475262574).

The spelling of 220131552 in words is "two hundred twenty million, one hundred thirty-one thousand, five hundred fifty-two".