275224572 has 144 divisors (see below), whose sum is σ = 838656000. Its totient is φ = 75993120.

The previous prime is 275224571. The next prime is 275224591. The reversal of 275224572 is 275422572.

275224572 is a `hidden beast` number, since 27 + 522 + 45 + 72 = 666.

275224572 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

275224572 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275224571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382429 + ... + 383147.

It is an arithmetic number, because the mean of its divisors is an integer number (5824000).

Almost surely, 2^275224572 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 275224572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419328000).

275224572 is an abundant number, since it is smaller than the sum of its proper divisors (563431428).

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

275224572 is a wasteful number, since it uses less digits than its factorization.

275224572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 762 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 275224572 is about 16589.8936705453. The cubic root of 275224572 is about 650.4726912759.

The spelling of 275224572 in words is "two hundred seventy-five million, two hundred twenty-four thousand, five hundred seventy-two".