15434335225 has 9 divisors (see below), whose sum is σ = 19139345967. Its totient is φ = 12346971240.

The previous prime is 15434335193. The next prime is 15434335261. The reversal of 15434335225 is 52253343451.

The square root of 15434335225 is 124235.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5556360681 + 9877974544 = 74541^2 + 99388^2 .

It is not a de Polignac number, because 15434335225 - 2⁵ = 15434335193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 608752 + ... + 633598.

Almost surely, 2^15434335225 is an apocalyptic number.

15434335225 is the 124235-th square number.

15434335225 is the 62118-th centered octagonal number.

It is an amenable number.

15434335225 is a deficient number, since it is larger than the sum of its proper divisors (3705010742).

15434335225 is an frugal number, since it uses more digits than its factorization.

15434335225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49704 (or 24852 counting only the distinct ones).

The product of its digits is 216000, while the sum is 37.

Adding to 15434335225 its reverse (52253343451), we get a palindrome (67687678676).

The spelling of 15434335225 in words is "fifteen billion, four hundred thirty-four million, three hundred thirty-five thousand, two hundred twenty-five".