25575541 has 2 divisors, whose sum is σ = 25575542. Its totient is φ = 25575540.

The previous prime is 25575509. The next prime is 25575551. The reversal of 25575541 is 14557552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14326225 + 11249316 = 3785^2 + 3354^2 .

It is a cyclic number.

It is not a de Polignac number, because 25575541 - 2⁵ = 25575509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25575497 and 25575506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25575551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12787770 + 12787771.

It is an arithmetic number, because the mean of its divisors is an integer number (12787771).

Almost surely, 2^25575541 is an apocalyptic number.

It is an amenable number.

25575541 is a deficient number, since it is larger than the sum of its proper divisors (1).

25575541 is an equidigital number, since it uses as much as digits as its factorization.

25575541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35000, while the sum is 34.

The square root of 25575541 is about 5057.2266114937. The cubic root of 25575541 is about 294.6286277674.

The spelling of 25575541 in words is "twenty-five million, five hundred seventy-five thousand, five hundred forty-one".