25481873 has 2 divisors, whose sum is σ = 25481874. Its totient is φ = 25481872.

The previous prime is 25481821. The next prime is 25481879. The reversal of 25481873 is 37818452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20178064 + 5303809 = 4492^2 + 2303^2 .

It is a cyclic number.

It is not a de Polignac number, because 25481873 - 2¹⁸ = 25219729 is a prime.

It is not a weakly prime, because it can be changed into another prime (25481879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12740936 + 12740937.

It is an arithmetic number, because the mean of its divisors is an integer number (12740937).

Almost surely, 2^25481873 is an apocalyptic number.

It is an amenable number.

25481873 is a deficient number, since it is larger than the sum of its proper divisors (1).

25481873 is an equidigital number, since it uses as much as digits as its factorization.

25481873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

The square root of 25481873 is about 5047.9573096452. The cubic root of 25481873 is about 294.2685046088.

The spelling of 25481873 in words is "twenty-five million, four hundred eighty-one thousand, eight hundred seventy-three".