25000000036 has 24 divisors (see below), whose sum is σ = 47744978400. Its totient is φ = 11359420800.

The previous prime is 25000000021. The next prime is 25000000111. The reversal of 25000000036 is 63000000052.

It is a junction number, because it is equal to n+sod(n) for n = 24999999956 and 25000000019.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16140 + ... + 224188.

It is an arithmetic number, because the mean of its divisors is an integer number (1989374100).

Almost surely, 2^25000000036 is an apocalyptic number.

It is an amenable number.

25000000036 is a deficient number, since it is larger than the sum of its proper divisors (22744978364).

25000000036 is a wasteful number, since it uses less digits than its factorization.

25000000036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210795 (or 210793 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 25000000036 its sum of digits (16), we get a palindrome (25000000052).

Adding to 25000000036 its reverse (63000000052), we get a palindrome (88000000088).

The spelling of 25000000036 in words is "twenty-five billion, thirty-six", and thus it is an aban number and an uban number.