4321513225 has 6 divisors (see below), whose sum is σ = 5358676430. Its totient is φ = 3457210560.

The previous prime is 4321513177. The next prime is 4321513249. The reversal of 4321513225 is 5223151234.

It can be written as a sum of positive squares in 3 ways, for example, as 136328976 + 4185184249 = 11676^2 + 64693^2 .

It is not a de Polignac number, because 4321513225 - 2¹³ = 4321505033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4321513193 and 4321513202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86430240 + ... + 86430289.

Almost surely, 2^4321513225 is an apocalyptic number.

It is an amenable number.

4321513225 is a deficient number, since it is larger than the sum of its proper divisors (1037163205).

4321513225 is a wasteful number, since it uses less digits than its factorization.

4321513225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172860539 (or 172860534 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 4321513225 is about 65738.2173853231. The cubic root of 4321513225 is about 1628.8407109334.

Adding to 4321513225 its reverse (5223151234), we get a palindrome (9544664459).

The spelling of 4321513225 in words is "four billion, three hundred twenty-one million, five hundred thirteen thousand, two hundred twenty-five".