28541025 has 24 divisors (see below), whose sum is σ = 52432160. Its totient is φ = 15221520.

The previous prime is 28541003. The next prime is 28541039. The reversal of 28541025 is 52014582.

It is a happy number.

It is not a de Polignac number, because 28541025 - 2⁹ = 28540513 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 28541025.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20467 + ... + 21816.

Almost surely, 2^28541025 is an apocalyptic number.

28541025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28541025 is a deficient number, since it is larger than the sum of its proper divisors (23891135).

28541025 is a wasteful number, since it uses less digits than its factorization.

28541025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42302 (or 42291 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 28541025 is about 5342.3800875640. The cubic root of 28541025 is about 305.6022321102.

The spelling of 28541025 in words is "twenty-eight million, five hundred forty-one thousand, twenty-five".