313440025 has 6 divisors (see below), whose sum is σ = 388665662. Its totient is φ = 250752000.

The previous prime is 313439989. The next prime is 313440031. The reversal of 313440025 is 520044313.

It can be written as a sum of positive squares in 3 ways, for example, as 84492864 + 228947161 = 9192^2 + 15131^2 .

It is not a de Polignac number, because 313440025 - 2¹¹ = 313437977 is a prime.

It is a super-4 number, since 4×313440025⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313439978 and 313440005.

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, 6268776 + ... + 6268825.

Almost surely, 2^313440025 is an apocalyptic number.

It is an amenable number.

313440025 is a deficient number, since it is larger than the sum of its proper divisors (75225637).

313440025 is a wasteful number, since it uses less digits than its factorization.

313440025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12537611 (or 12537606 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 313440025 is about 17704.2374871103. The cubic root of 313440025 is about 679.2841551339.

Adding to 313440025 its reverse (520044313), we get a palindrome (833484338).

The spelling of 313440025 in words is "three hundred thirteen million, four hundred forty thousand, twenty-five".