25773157 has 2 divisors, whose sum is σ = 25773158. Its totient is φ = 25773156.

The previous prime is 25773151. The next prime is 25773169. The reversal of 25773157 is 75137752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23367556 + 2405601 = 4834^2 + 1551^2 .

It is a cyclic number.

It is not a de Polignac number, because 25773157 - 2¹⁵ = 25740389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25773151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12886578 + 12886579.

It is an arithmetic number, because the mean of its divisors is an integer number (12886579).

Almost surely, 2^25773157 is an apocalyptic number.

It is an amenable number.

25773157 is a deficient number, since it is larger than the sum of its proper divisors (1).

25773157 is an equidigital number, since it uses as much as digits as its factorization.

25773157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51450, while the sum is 37.

The square root of 25773157 is about 5076.7269967963. The cubic root of 25773157 is about 295.3855229607.

The spelling of 25773157 in words is "twenty-five million, seven hundred seventy-three thousand, one hundred fifty-seven".