25632553 has 2 divisors, whose sum is σ = 25632554. Its totient is φ = 25632552.

The previous prime is 25632533. The next prime is 25632559. The reversal of 25632553 is 35523652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25431849 + 200704 = 5043^2 + 448^2 .

It is a cyclic number.

It is not a de Polignac number, because 25632553 - 2⁵ = 25632521 is a prime.

It is not a weakly prime, because it can be changed into another prime (25632559) 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, 12816276 + 12816277.

It is an arithmetic number, because the mean of its divisors is an integer number (12816277).

Almost surely, 2^25632553 is an apocalyptic number.

It is an amenable number.

25632553 is a deficient number, since it is larger than the sum of its proper divisors (1).

25632553 is an equidigital number, since it uses as much as digits as its factorization.

25632553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 31.

The square root of 25632553 is about 5062.8601600281. The cubic root of 25632553 is about 294.8473901834.

The spelling of 25632553 in words is "twenty-five million, six hundred thirty-two thousand, five hundred fifty-three".