25556411 has 2 divisors, whose sum is σ = 25556412. Its totient is φ = 25556410.

The previous prime is 25556393. The next prime is 25556417. The reversal of 25556411 is 11465552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25556411 - 2⁶ = 25556347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25556417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12778205 + 12778206.

It is an arithmetic number, because the mean of its divisors is an integer number (12778206).

Almost surely, 2^25556411 is an apocalyptic number.

25556411 is a deficient number, since it is larger than the sum of its proper divisors (1).

25556411 is an equidigital number, since it uses as much as digits as its factorization.

25556411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6000, while the sum is 29.

The square root of 25556411 is about 5055.3349048307. The cubic root of 25556411 is about 294.5551506446. Note that the first 3 decimals are identical.

The spelling of 25556411 in words is "twenty-five million, five hundred fifty-six thousand, four hundred eleven".