25385401 has 2 divisors, whose sum is σ = 25385402. Its totient is φ = 25385400.

The previous prime is 25385377. The next prime is 25385407. The reversal of 25385401 is 10458352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22231225 + 3154176 = 4715^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 25385401 - 2¹⁷ = 25254329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25385401.

It is not a weakly prime, because it can be changed into another prime (25385407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12692700 + 12692701.

It is an arithmetic number, because the mean of its divisors is an integer number (12692701).

Almost surely, 2^25385401 is an apocalyptic number.

It is an amenable number.

25385401 is a deficient number, since it is larger than the sum of its proper divisors (1).

25385401 is an equidigital number, since it uses as much as digits as its factorization.

25385401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 25385401 is about 5038.3927000582. The cubic root of 25385401 is about 293.8966772534.

The spelling of 25385401 in words is "twenty-five million, three hundred eighty-five thousand, four hundred one".