25440230002 has 16 divisors (see below), whose sum is σ = 41648140800. Its totient is φ = 11558553840.

The previous prime is 25440229981. The next prime is 25440230033. The reversal of 25440230002 is 20003204452.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208977 + ... + 307492.

It is an arithmetic number, because the mean of its divisors is an integer number (2603008800).

Almost surely, 2^25440230002 is an apocalyptic number.

25440230002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25440230002 is a deficient number, since it is larger than the sum of its proper divisors (16207910798).

25440230002 is a wasteful number, since it uses less digits than its factorization.

25440230002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518721.

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 25440230002 its reverse (20003204452), we get a palindrome (45443434454).

The spelling of 25440230002 in words is "twenty-five billion, four hundred forty million, two hundred thirty thousand, two".