1809048425 has 24 divisors (see below), whose sum is σ = 2371232160. Its totient is φ = 1365292800.

The previous prime is 1809048419. The next prime is 1809048427. The reversal of 1809048425 is 5248409081.

It is not a de Polignac number, because 1809048425 - 2¹² = 1809044329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1809048427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106574 + ... + 122376.

It is an arithmetic number, because the mean of its divisors is an integer number (98801340).

Almost surely, 2^1809048425 is an apocalyptic number.

It is an amenable number.

1809048425 is a deficient number, since it is larger than the sum of its proper divisors (562183735).

1809048425 is a wasteful number, since it uses less digits than its factorization.

1809048425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16073 (or 16068 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 1809048425 is about 42532.9099051546. The cubic root of 1809048425 is about 1218.4753023676.

The spelling of 1809048425 in words is "one billion, eight hundred nine million, forty-eight thousand, four hundred twenty-five".