25145401 has 2 divisors, whose sum is σ = 25145402. Its totient is φ = 25145400.

The previous prime is 25145381. The next prime is 25145443. The reversal of 25145401 is 10454152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23040000 + 2105401 = 4800^2 + 1451^2 .

It is a cyclic number.

It is not a de Polignac number, because 25145401 - 2⁵ = 25145369 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25145201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12572700 + 12572701.

It is an arithmetic number, because the mean of its divisors is an integer number (12572701).

Almost surely, 2^25145401 is an apocalyptic number.

It is an amenable number.

25145401 is a deficient number, since it is larger than the sum of its proper divisors (1).

25145401 is an equidigital number, since it uses as much as digits as its factorization.

25145401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 25145401 is about 5014.5190198064. The cubic root of 25145401 is about 292.9675518432.

Adding to 25145401 its reverse (10454152), we get a palindrome (35599553).

The spelling of 25145401 in words is "twenty-five million, one hundred forty-five thousand, four hundred one".