25063389937 has 2 divisors, whose sum is σ = 25063389938. Its totient is φ = 25063389936.

The previous prime is 25063389907. The next prime is 25063389959. The reversal of 25063389937 is 73998336052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24685437456 + 377952481 = 157116^2 + 19441^2 .

It is a cyclic number.

It is not a de Polignac number, because 25063389937 - 2¹⁵ = 25063357169 is a prime.

It is a super-2 number, since 2×25063389937² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25063389907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12531694968 + 12531694969.

It is an arithmetic number, because the mean of its divisors is an integer number (12531694969).

Almost surely, 2^25063389937 is an apocalyptic number.

It is an amenable number.

25063389937 is a deficient number, since it is larger than the sum of its proper divisors (1).

25063389937 is an equidigital number, since it uses as much as digits as its factorization.

25063389937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 25063389937 in words is "twenty-five billion, sixty-three million, three hundred eighty-nine thousand, nine hundred thirty-seven".