28652425 has 6 divisors (see below), whose sum is σ = 35529038. Its totient is φ = 22921920.

The previous prime is 28652419. The next prime is 28652441. The reversal of 28652425 is 52425682.

It can be written as a sum of positive squares in 3 ways, for example, as 318096 + 28334329 = 564^2 + 5323^2 .

It is not a de Polignac number, because 28652425 - 2³ = 28652417 is a prime.

It is a super-2 number, since 2×28652425² = 1641922916761250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 573024 + ... + 573073.

Almost surely, 2^28652425 is an apocalyptic number.

28652425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28652425 is a deficient number, since it is larger than the sum of its proper divisors (6876613).

28652425 is a wasteful number, since it uses less digits than its factorization.

28652425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146107 (or 1146102 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The square root of 28652425 is about 5352.7959983545. The cubic root of 28652425 is about 305.9993200606. Note that the first 3 decimals are identical.

The spelling of 28652425 in words is "twenty-eight million, six hundred fifty-two thousand, four hundred twenty-five".