28350453225 has 12 divisors (see below), whose sum is σ = 46872749456. Its totient is φ = 15120241680.

The previous prime is 28350453203. The next prime is 28350453233. The reversal of 28350453225 is 52235405382.

It is not a de Polignac number, because 28350453225 - 2¹⁵ = 28350420457 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189002947 + ... + 189003096.

Almost surely, 2^28350453225 is an apocalyptic number.

28350453225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28350453225 is a deficient number, since it is larger than the sum of its proper divisors (18522296231).

28350453225 is a wasteful number, since it uses less digits than its factorization.

28350453225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378006056 (or 378006051 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 28350453225 in words is "twenty-eight billion, three hundred fifty million, four hundred fifty-three thousand, two hundred twenty-five".