25325315407 has 6 divisors (see below), whose sum is σ = 28943698808. Its totient is φ = 21707052312.

The previous prime is 25325315399. The next prime is 25325315419. The reversal of 25325315407 is 70451352352.

It is a happy number.

It is not a de Polignac number, because 25325315407 - 2³ = 25325315399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25325315467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 390969 + ... + 451117.

Almost surely, 2^25325315407 is an apocalyptic number.

25325315407 is a deficient number, since it is larger than the sum of its proper divisors (3618383401).

25325315407 is an frugal number, since it uses more digits than its factorization.

25325315407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120305 (or 60156 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 37.

Adding to 25325315407 its reverse (70451352352), we get a palindrome (95776667759).

The spelling of 25325315407 in words is "twenty-five billion, three hundred twenty-five million, three hundred fifteen thousand, four hundred seven".