25439461201 has 24 divisors (see below), whose sum is σ = 32148547200. Its totient is φ = 19704146880.

The previous prime is 25439461189. The next prime is 25439461261. The reversal of 25439461201 is 10216493452.

It is a happy number.

It is not a de Polignac number, because 25439461201 - 2¹³ = 25439453009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25439461261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51525 + ... + 231373.

It is an arithmetic number, because the mean of its divisors is an integer number (1339522800).

Almost surely, 2^25439461201 is an apocalyptic number.

It is an amenable number.

25439461201 is a deficient number, since it is larger than the sum of its proper divisors (6709085999).

25439461201 is a wasteful number, since it uses less digits than its factorization.

25439461201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180045 (or 180034 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 25439461201 in words is "twenty-five billion, four hundred thirty-nine million, four hundred sixty-one thousand, two hundred one".