25606427 has 16 divisors (see below), whose sum is σ = 32707584. Its totient is φ = 19464000.

The previous prime is 25606423. The next prime is 25606463. The reversal of 25606427 is 72460652.

It is a cyclic number.

It is not a de Polignac number, because 25606427 - 2² = 25606423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25606393 and 25606402.

It is not an unprimeable number, because it can be changed into a prime (25606423) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 899 + ... + 7212.

It is an arithmetic number, because the mean of its divisors is an integer number (2044224).

Almost surely, 2^25606427 is an apocalyptic number.

25606427 is a deficient number, since it is larger than the sum of its proper divisors (7101157).

25606427 is a wasteful number, since it uses less digits than its factorization.

25606427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8170.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 25606427 is about 5060.2793401155. The cubic root of 25606427 is about 294.7471816509.

The spelling of 25606427 in words is "twenty-five million, six hundred six thousand, four hundred twenty-seven".