28456205925 has 48 divisors (see below), whose sum is σ = 54680071680. Its totient is φ = 12788053440.

The previous prime is 28456205917. The next prime is 28456205929. The reversal of 28456205925 is 52950265482.

It is not a de Polignac number, because 28456205925 - 2³ = 28456205917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28456205929) 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, 428367 + ... + 490316.

It is an arithmetic number, because the mean of its divisors is an integer number (1139168160).

Almost surely, 2^28456205925 is an apocalyptic number.

28456205925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28456205925 is a deficient number, since it is larger than the sum of its proper divisors (26223865755).

28456205925 is a wasteful number, since it uses less digits than its factorization.

28456205925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918762 (or 918757 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 28456205925 in words is "twenty-eight billion, four hundred fifty-six million, two hundred five thousand, nine hundred twenty-five".