25457441 has 2 divisors, whose sum is σ = 25457442. Its totient is φ = 25457440.

The previous prime is 25457429. The next prime is 25457461. The reversal of 25457441 is 14475452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20070400 + 5387041 = 4480^2 + 2321^2 .

It is a cyclic number.

It is not a de Polignac number, because 25457441 - 2¹⁸ = 25195297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25457398 and 25457407.

It is not a weakly prime, because it can be changed into another prime (25457401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12728720 + 12728721.

It is an arithmetic number, because the mean of its divisors is an integer number (12728721).

Almost surely, 2^25457441 is an apocalyptic number.

It is an amenable number.

25457441 is a deficient number, since it is larger than the sum of its proper divisors (1).

25457441 is an equidigital number, since it uses as much as digits as its factorization.

25457441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22400, while the sum is 32.

The square root of 25457441 is about 5045.5367405262. The cubic root of 25457441 is about 294.1744263973.

The spelling of 25457441 in words is "twenty-five million, four hundred fifty-seven thousand, four hundred forty-one".