28876525 has 6 divisors (see below), whose sum is σ = 35806922. Its totient is φ = 23101200.

The previous prime is 28876517. The next prime is 28876543. The reversal of 28876525 is 52567882.

It can be written as a sum of positive squares in 3 ways, for example, as 7396 + 28869129 = 86^2 + 5373^2 .

It is not a de Polignac number, because 28876525 - 2³ = 28876517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 577506 + ... + 577555.

Almost surely, 2^28876525 is an apocalyptic number.

28876525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28876525 is a deficient number, since it is larger than the sum of its proper divisors (6930397).

28876525 is a wasteful number, since it uses less digits than its factorization.

28876525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155071 (or 1155066 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 28876525 is about 5373.6882120197. The cubic root of 28876525 is about 306.7950228020.

The spelling of 28876525 in words is "twenty-eight million, eight hundred seventy-six thousand, five hundred twenty-five".