25139001389 has 2 divisors, whose sum is σ = 25139001390. Its totient is φ = 25139001388.

The previous prime is 25139001361. The next prime is 25139001487. The reversal of 25139001389 is 98310093152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17091117289 + 8047884100 = 130733^2 + 89710^2 .

It is a cyclic number.

It is not a de Polignac number, because 25139001389 - 2¹² = 25138997293 is a prime.

It is a super-2 number, since 2×25139001389² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25139001319) 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, 12569500694 + 12569500695.

It is an arithmetic number, because the mean of its divisors is an integer number (12569500695).

Almost surely, 2^25139001389 is an apocalyptic number.

It is an amenable number.

25139001389 is a deficient number, since it is larger than the sum of its proper divisors (1).

25139001389 is an equidigital number, since it uses as much as digits as its factorization.

25139001389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 25139001389 in words is "twenty-five billion, one hundred thirty-nine million, one thousand, three hundred eighty-nine".