25057961 has 2 divisors, whose sum is σ = 25057962. Its totient is φ = 25057960.

The previous prime is 25057939. The next prime is 25057969. The reversal of 25057961 is 16975052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13875625 + 11182336 = 3725^2 + 3344^2 .

It is a cyclic number.

It is not a de Polignac number, because 25057961 - 2¹⁰ = 25056937 is a prime.

It is not a weakly prime, because it can be changed into another prime (25057969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12528980 + 12528981.

It is an arithmetic number, because the mean of its divisors is an integer number (12528981).

Almost surely, 2^25057961 is an apocalyptic number.

It is an amenable number.

25057961 is a deficient number, since it is larger than the sum of its proper divisors (1).

25057961 is an equidigital number, since it uses as much as digits as its factorization.

25057961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 25057961 is about 5005.7927444112. The cubic root of 25057961 is about 292.6275714012.

The spelling of 25057961 in words is "twenty-five million, fifty-seven thousand, nine hundred sixty-one".