28032607725 has 48 divisors (see below), whose sum is σ = 49745958912. Its totient is φ = 13878466560.

The previous prime is 28032607723. The next prime is 28032607727. The reversal of 28032607725 is 52770623082.

It is an interprime number because it is at equal distance from previous prime (28032607723) and next prime (28032607727).

It is not a de Polignac number, because 28032607725 - 2¹ = 28032607723 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28032607723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57517 + ... + 243666.

It is an arithmetic number, because the mean of its divisors is an integer number (1036374144).

Almost surely, 2^28032607725 is an apocalyptic number.

28032607725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28032607725 is a deficient number, since it is larger than the sum of its proper divisors (21713351187).

28032607725 is a wasteful number, since it uses less digits than its factorization.

28032607725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301286 (or 301281 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 28032607725 in words is "twenty-eight billion, thirty-two million, six hundred seven thousand, seven hundred twenty-five".