28053572 has 6 divisors (see below), whose sum is σ = 49093758. Its totient is φ = 14026784.

The previous prime is 28053569. The next prime is 28053577. The reversal of 28053572 is 27535082.

It can be written as a sum of positive squares in only one way, i.e., 18957316 + 9096256 = 4354^2 + 3016^2 .

It is not an unprimeable number, because it can be changed into a prime (28053577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3506693 + ... + 3506700.

It is an arithmetic number, because the mean of its divisors is an integer number (8182293).

Almost surely, 2^28053572 is an apocalyptic number.

It is an amenable number.

28053572 is a deficient number, since it is larger than the sum of its proper divisors (21040186).

28053572 is a wasteful number, since it uses less digits than its factorization.

28053572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7013397 (or 7013395 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 28053572 is about 5296.5622813293. The cubic root of 28053572 is about 303.8524358851.

The spelling of 28053572 in words is "twenty-eight million, fifty-three thousand, five hundred seventy-two".