289575552 has 128 divisors (see below), whose sum is σ = 930925440. Its totient is φ = 77856768.

The previous prime is 289575551. The next prime is 289575553. The reversal of 289575552 is 255575982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (289575551) and next prime (289575553).

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×289575552² = 167708000632209408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289575551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42528 + ... + 48864.

It is an arithmetic number, because the mean of its divisors is an integer number (7272855).

Almost surely, 2^289575552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289575552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465462720).

289575552 is an abundant number, since it is smaller than the sum of its proper divisors (641349888).

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

289575552 is a wasteful number, since it uses less digits than its factorization.

289575552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378 (or 6366 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 48.

The square root of 289575552 is about 17016.9195802296. The cubic root of 289575552 is about 661.5875099687.

The spelling of 289575552 in words is "two hundred eighty-nine million, five hundred seventy-five thousand, five hundred fifty-two".