4320621125 has 16 divisors (see below), whose sum is σ = 5566080000. Its totient is φ = 3344994000.

The previous prime is 4320621121. The next prime is 4320621167. The reversal of 4320621125 is 5211260234.

It is a happy number.

It is not a de Polignac number, because 4320621125 - 2² = 4320621121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4320621094 and 4320621103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320621121) 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 15 ways as a sum of consecutive naturals, for example, 553625 + ... + 561374.

It is an arithmetic number, because the mean of its divisors is an integer number (347880000).

Almost surely, 2^4320621125 is an apocalyptic number.

It is an amenable number.

4320621125 is a deficient number, since it is larger than the sum of its proper divisors (1245458875).

4320621125 is a wasteful number, since it uses less digits than its factorization.

4320621125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115045 (or 1115035 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4320621125 is about 65731.4317887569. The cubic root of 4320621125 is about 1628.7286214313.

Adding to 4320621125 its reverse (5211260234), we get a palindrome (9531881359).

The spelling of 4320621125 in words is "four billion, three hundred twenty million, six hundred twenty-one thousand, one hundred twenty-five".