25454501 has 2 divisors, whose sum is σ = 25454502. Its totient is φ = 25454500.

The previous prime is 25454467. The next prime is 25454521. The reversal of 25454501 is 10545452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16394401 + 9060100 = 4049^2 + 3010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25454501 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25454521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12727250 + 12727251.

It is an arithmetic number, because the mean of its divisors is an integer number (12727251).

Almost surely, 2^25454501 is an apocalyptic number.

It is an amenable number.

25454501 is a deficient number, since it is larger than the sum of its proper divisors (1).

25454501 is an equidigital number, since it uses as much as digits as its factorization.

25454501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 25454501 is about 5045.2453855090. The cubic root of 25454501 is about 294.1631015341.

Adding to 25454501 its reverse (10545452), we get a palindrome (35999953).

The spelling of 25454501 in words is "twenty-five million, four hundred fifty-four thousand, five hundred one".