28551045 has 16 divisors (see below), whose sum is σ = 46365120. Its totient is φ = 14999424.

The previous prime is 28551023. The next prime is 28551101. The reversal of 28551045 is 54015582.

It is not a de Polignac number, because 28551045 - 2⁸ = 28550789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13200 + ... + 15209.

It is an arithmetic number, because the mean of its divisors is an integer number (2897820).

Almost surely, 2^28551045 is an apocalyptic number.

It is an amenable number.

28551045 is a deficient number, since it is larger than the sum of its proper divisors (17814075).

28551045 is a wasteful number, since it uses less digits than its factorization.

28551045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28484.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 28551045 is about 5343.3177895386. The cubic root of 28551045 is about 305.6379908831.

The spelling of 28551045 in words is "twenty-eight million, five hundred fifty-one thousand, forty-five".