25202320004 has 24 divisors (see below), whose sum is σ = 47179855800. Its totient is φ = 11737645056.

The previous prime is 25202319977. The next prime is 25202320037. The reversal of 25202320004 is 40002320252.

It can be written as a sum of positive squares in 4 ways, for example, as 1501717504 + 23700602500 = 38752^2 + 153950^2 .

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, 1903829 + ... + 1917020.

It is an arithmetic number, because the mean of its divisors is an integer number (1965827325).

Almost surely, 2^25202320004 is an apocalyptic number.

It is an amenable number.

25202320004 is a deficient number, since it is larger than the sum of its proper divisors (21977535796).

25202320004 is a wasteful number, since it uses less digits than its factorization.

25202320004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820967 (or 3820965 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 25202320004 its reverse (40002320252), we get a palindrome (65204640256).

The spelling of 25202320004 in words is "twenty-five billion, two hundred two million, three hundred twenty thousand, four".