25321151 has 2 divisors, whose sum is σ = 25321152. Its totient is φ = 25321150.

The previous prime is 25321099. The next prime is 25321157. The reversal of 25321151 is 15112352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25321151 - 2¹⁸ = 25059007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25321157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12660575 + 12660576.

It is an arithmetic number, because the mean of its divisors is an integer number (12660576).

Almost surely, 2^25321151 is an apocalyptic number.

25321151 is a deficient number, since it is larger than the sum of its proper divisors (1).

25321151 is an equidigital number, since it uses as much as digits as its factorization.

25321151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 20.

The square root of 25321151 is about 5032.0126192211. The cubic root of 25321151 is about 293.6485186802.

The spelling of 25321151 in words is "twenty-five million, three hundred twenty-one thousand, one hundred fifty-one".