28465525 has 12 divisors (see below), whose sum is σ = 38506464. Its totient is φ = 20702000.

The previous prime is 28465511. The next prime is 28465529. The reversal of 28465525 is 52556482.

It is not a de Polignac number, because 28465525 - 2⁷ = 28465397 is a prime.

It is a super-2 number, since 2×28465525² = 1620572227051250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28465529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51481 + ... + 52030.

It is an arithmetic number, because the mean of its divisors is an integer number (3208872).

Almost surely, 2^28465525 is an apocalyptic number.

28465525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28465525 is a deficient number, since it is larger than the sum of its proper divisors (10040939).

28465525 is a wasteful number, since it uses less digits than its factorization.

28465525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103532 (or 103527 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

The square root of 28465525 is about 5335.3092693864. The cubic root of 28465525 is about 305.3325227642.

The spelling of 28465525 in words is "twenty-eight million, four hundred sixty-five thousand, five hundred twenty-five".