28313066025 has 192 divisors, whose sum is σ = 54760780800. Its totient is φ = 14511182400.

The previous prime is 28313066021. The next prime is 28313066057. The reversal of 28313066025 is 52066031382.

It is a happy number.

It is not a de Polignac number, because 28313066025 - 2² = 28313066021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28313066021) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 216130210 + ... + 216130340.

It is an arithmetic number, because the mean of its divisors is an integer number (285212400).

Almost surely, 2^28313066025 is an apocalyptic number.

28313066025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28313066025 is a deficient number, since it is larger than the sum of its proper divisors (26447714775).

28313066025 is an equidigital number, since it uses as much as digits as its factorization.

28313066025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 28313066025 in words is "twenty-eight billion, three hundred thirteen million, sixty-six thousand, twenty-five".