25065012615 has 8 divisors (see below), whose sum is σ = 40104020208. Its totient is φ = 13368006720.

The previous prime is 25065012593. The next prime is 25065012677. The reversal of 25065012615 is 51621056052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25065012615 - 2¹¹ = 25065010567 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835500406 + ... + 835500435.

It is an arithmetic number, because the mean of its divisors is an integer number (5013002526).

Almost surely, 2^25065012615 is an apocalyptic number.

25065012615 is a deficient number, since it is larger than the sum of its proper divisors (15039007593).

25065012615 is a wasteful number, since it uses less digits than its factorization.

25065012615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671000849.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 25065012615 its reverse (51621056052), we get a palindrome (76686068667).

The spelling of 25065012615 in words is "twenty-five billion, sixty-five million, twelve thousand, six hundred fifteen".