25000213124 has 24 divisors (see below), whose sum is σ = 48338011008. Its totient is φ = 11253292160.

The previous prime is 25000213093. The next prime is 25000213151. The reversal of 25000213124 is 42131200052.

It is a junction number, because it is equal to n+sod(n) for n = 25000213096 and 25000213105.

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, 7990832 + ... + 7993959.

It is an arithmetic number, because the mean of its divisors is an integer number (2014083792).

Almost surely, 2^25000213124 is an apocalyptic number.

It is an amenable number.

25000213124 is a deficient number, since it is larger than the sum of its proper divisors (23337797884).

25000213124 is a wasteful number, since it uses less digits than its factorization.

25000213124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15984835 (or 15984833 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 25000213124 its reverse (42131200052), we get a palindrome (67131413176).

The spelling of 25000213124 in words is "twenty-five billion, two hundred thirteen thousand, one hundred twenty-four".