28055300525 has 48 divisors (see below), whose sum is σ = 41552649984. Its totient is φ = 18372372480.

The previous prime is 28055300513. The next prime is 28055300551. The reversal of 28055300525 is 52500355082.

It is not a de Polignac number, because 28055300525 - 2²⁰ = 28054251949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2703647 + ... + 2714003.

It is an arithmetic number, because the mean of its divisors is an integer number (865680208).

Almost surely, 2^28055300525 is an apocalyptic number.

28055300525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28055300525 is a deficient number, since it is larger than the sum of its proper divisors (13497349459).

28055300525 is a wasteful number, since it uses less digits than its factorization.

28055300525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070 (or 11065 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 28055300525 in words is "twenty-eight billion, fifty-five million, three hundred thousand, five hundred twenty-five".