25953157 has 2 divisors, whose sum is σ = 25953158. Its totient is φ = 25953156.

The previous prime is 25953119. The next prime is 25953163. The reversal of 25953157 is 75135952.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19368801 + 6584356 = 4401^2 + 2566^2 .

It is a cyclic number.

It is not a de Polignac number, because 25953157 - 2²³ = 17564549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25953197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12976578 + 12976579.

It is an arithmetic number, because the mean of its divisors is an integer number (12976579).

Almost surely, 2^25953157 is an apocalyptic number.

It is an amenable number.

25953157 is a deficient number, since it is larger than the sum of its proper divisors (1).

25953157 is an equidigital number, since it uses as much as digits as its factorization.

25953157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47250, while the sum is 37.

The square root of 25953157 is about 5094.4241087683. The cubic root of 25953157 is about 296.0715868065.

The spelling of 25953157 in words is "twenty-five million, nine hundred fifty-three thousand, one hundred fifty-seven".