25120002 has 16 divisors (see below), whose sum is σ = 52424640. Its totient is φ = 8009232.

The previous prime is 25120001. The next prime is 25120009. The reversal of 25120002 is 20002152.

It is a self number, because there is not a number n which added to its sum of digits gives 25120002.

It is not an unprimeable number, because it can be changed into a prime (25120001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90877 + ... + 91152.

It is an arithmetic number, because the mean of its divisors is an integer number (3276540).

Almost surely, 2^25120002 is an apocalyptic number.

25120002 is an abundant number, since it is smaller than the sum of its proper divisors (27304638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25120002 is a wasteful number, since it uses less digits than its factorization.

25120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182057.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 25120002 is about 5011.9858339784. The cubic root of 25120002 is about 292.8688778732.

Adding to 25120002 its reverse (20002152), we get a palindrome (45122154).

The spelling of 25120002 in words is "twenty-five million, one hundred twenty thousand, two".