28057748325 has 96 divisors (see below), whose sum is σ = 48836874240. Its totient is φ = 14197747200.

The previous prime is 28057748317. The next prime is 28057748359. The reversal of 28057748325 is 52384775082.

It is not a de Polignac number, because 28057748325 - 2³ = 28057748317 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58575436 + ... + 58575914.

It is an arithmetic number, because the mean of its divisors is an integer number (508717440).

Almost surely, 2^28057748325 is an apocalyptic number.

28057748325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28057748325 is a deficient number, since it is larger than the sum of its proper divisors (20779125915).

28057748325 is a wasteful number, since it uses less digits than its factorization.

28057748325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 51.

The spelling of 28057748325 in words is "twenty-eight billion, fifty-seven million, seven hundred forty-eight thousand, three hundred twenty-five".