25628111 has 2 divisors, whose sum is σ = 25628112. Its totient is φ = 25628110.

The previous prime is 25628107. The next prime is 25628123. The reversal of 25628111 is 11182652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25628111 - 2² = 25628107 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25628101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12814055 + 12814056.

It is an arithmetic number, because the mean of its divisors is an integer number (12814056).

Almost surely, 2^25628111 is an apocalyptic number.

25628111 is a deficient number, since it is larger than the sum of its proper divisors (1).

25628111 is an equidigital number, since it uses as much as digits as its factorization.

25628111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 26.

The square root of 25628111 is about 5062.4214561808. The cubic root of 25628111 is about 294.8303573141.

The spelling of 25628111 in words is "twenty-five million, six hundred twenty-eight thousand, one hundred eleven".