25001401389 has 16 divisors (see below), whose sum is σ = 36221614080. Its totient is φ = 15280991280.

The previous prime is 25001401367. The next prime is 25001401391. The reversal of 25001401389 is 98310410052.

It is not a de Polignac number, because 25001401389 - 2⁸ = 25001401133 is a prime.

It is a super-2 number, since 2×25001401389² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25001401289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7072767 + ... + 7076300.

It is an arithmetic number, because the mean of its divisors is an integer number (2263850880).

Almost surely, 2^25001401389 is an apocalyptic number.

It is an amenable number.

25001401389 is a deficient number, since it is larger than the sum of its proper divisors (11220212691).

25001401389 is a wasteful number, since it uses less digits than its factorization.

25001401389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14149120.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 25001401389 in words is "twenty-five billion, one million, four hundred one thousand, three hundred eighty-nine".