315543252025 has 6 divisors (see below), whose sum is σ = 391273632542. Its totient is φ = 252434601600.

The previous prime is 315543252023. The next prime is 315543252029. The reversal of 315543252025 is 520252345513.

It can be written as a sum of positive squares in 3 ways, for example, as 5787557776 + 309755694249 = 76076^2 + 556557^2 .

It is not a de Polignac number, because 315543252025 - 2¹ = 315543252023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315543252023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6310865016 + ... + 6310865065.

Almost surely, 2^315543252025 is an apocalyptic number.

It is an amenable number.

315543252025 is a deficient number, since it is larger than the sum of its proper divisors (75730380517).

315543252025 is a wasteful number, since it uses less digits than its factorization.

315543252025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12621730091 (or 12621730086 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 315543252025 its reverse (520252345513), we get a palindrome (835795597538).

The spelling of 315543252025 in words is "three hundred fifteen billion, five hundred forty-three million, two hundred fifty-two thousand, twenty-five".