25524001 has 2 divisors, whose sum is σ = 25524002. Its totient is φ = 25524000.

The previous prime is 25523999. The next prime is 25524019. The reversal of 25524001 is 10042552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16613776 + 8910225 = 4076^2 + 2985^2 .

It is a cyclic number.

It is not a de Polignac number, because 25524001 - 2¹ = 25523999 is a prime.

Together with 25523999, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25524001.

It is not a weakly prime, because it can be changed into another prime (25524041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762000 + 12762001.

It is an arithmetic number, because the mean of its divisors is an integer number (12762001).

Almost surely, 2^25524001 is an apocalyptic number.

It is an amenable number.

25524001 is a deficient number, since it is larger than the sum of its proper divisors (1).

25524001 is an equidigital number, since it uses as much as digits as its factorization.

25524001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 25524001 is about 5052.1283633732. The cubic root of 25524001 is about 294.4305821513.

Adding to 25524001 its reverse (10042552), we get a palindrome (35566553).

The spelling of 25524001 in words is "twenty-five million, five hundred twenty-four thousand, one".