23278425 has 12 divisors (see below), whose sum is σ = 38487120. Its totient is φ = 12415120.

The previous prime is 23278417. The next prime is 23278441. The reversal of 23278425 is 52487232.

It is not a de Polignac number, because 23278425 - 2³ = 23278417 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155115 + ... + 155264.

It is an arithmetic number, because the mean of its divisors is an integer number (3207260).

Almost surely, 2^23278425 is an apocalyptic number.

23278425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23278425 is a deficient number, since it is larger than the sum of its proper divisors (15208695).

23278425 is a wasteful number, since it uses less digits than its factorization.

23278425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310392 (or 310387 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 23278425 is about 4824.7720153392. The cubic root of 23278425 is about 285.5296399227.

The spelling of 23278425 in words is "twenty-three million, two hundred seventy-eight thousand, four hundred twenty-five".