25129411 has 2 divisors, whose sum is σ = 25129412. Its totient is φ = 25129410.

The previous prime is 25129397. The next prime is 25129421. The reversal of 25129411 is 11492152.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25129411 - 2²¹ = 23032259 is a prime.

It is not a weakly prime, because it can be changed into another prime (25129421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12564705 + 12564706.

It is an arithmetic number, because the mean of its divisors is an integer number (12564706).

Almost surely, 2^25129411 is an apocalyptic number.

25129411 is a deficient number, since it is larger than the sum of its proper divisors (1).

25129411 is an equidigital number, since it uses as much as digits as its factorization.

25129411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 25.

The square root of 25129411 is about 5012.9243959988. The cubic root of 25129411 is about 292.9054391666.

The spelling of 25129411 in words is "twenty-five million, one hundred twenty-nine thousand, four hundred eleven".