28573625 has 32 divisors (see below), whose sum is σ = 38413440. Its totient is φ = 21153600.

The previous prime is 28573621. The next prime is 28573627. The reversal of 28573625 is 52637582.

28573625 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 28573625 - 2² = 28573621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28573621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125762 + ... + 125988.

It is an arithmetic number, because the mean of its divisors is an integer number (1200420).

Almost surely, 2^28573625 is an apocalyptic number.

28573625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28573625 is a deficient number, since it is larger than the sum of its proper divisors (9839815).

28573625 is a wasteful number, since it uses less digits than its factorization.

28573625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 304 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 28573625 is about 5345.4302913797. The cubic root of 28573625 is about 305.7185423691.

The spelling of 28573625 in words is "twenty-eight million, five hundred seventy-three thousand, six hundred twenty-five".