25653157 has 2 divisors, whose sum is σ = 25653158. Its totient is φ = 25653156.

The previous prime is 25653137. The next prime is 25653163. The reversal of 25653157 is 75135652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18395521 + 7257636 = 4289^2 + 2694^2 .

It is a cyclic number.

It is not a de Polignac number, because 25653157 - 2¹⁹ = 25128869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25653107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12826578 + 12826579.

It is an arithmetic number, because the mean of its divisors is an integer number (12826579).

Almost surely, 2^25653157 is an apocalyptic number.

It is an amenable number.

25653157 is a deficient number, since it is larger than the sum of its proper divisors (1).

25653157 is an equidigital number, since it uses as much as digits as its factorization.

25653157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 34.

The square root of 25653157 is about 5064.8945694851. The cubic root of 25653157 is about 294.9263705930.

The spelling of 25653157 in words is "twenty-five million, six hundred fifty-three thousand, one hundred fifty-seven".