25532400029 has 2 divisors, whose sum is σ = 25532400030. Its totient is φ = 25532400028.

The previous prime is 25532400001. The next prime is 25532400053. The reversal of 25532400029 is 92000423552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25216804804 + 315595225 = 158798^2 + 17765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25532400029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25532399968 and 25532400004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25532400529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12766200014 + 12766200015.

It is an arithmetic number, because the mean of its divisors is an integer number (12766200015).

Almost surely, 2^25532400029 is an apocalyptic number.

It is an amenable number.

25532400029 is a deficient number, since it is larger than the sum of its proper divisors (1).

25532400029 is an equidigital number, since it uses as much as digits as its factorization.

25532400029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 25532400029 in words is "twenty-five billion, five hundred thirty-two million, four hundred thousand, twenty-nine".