1315250325 has 24 divisors (see below), whose sum is σ = 2416164800. Its totient is φ = 701466480.

The previous prime is 1315250309. The next prime is 1315250329. The reversal of 1315250325 is 5230525131.

It is a happy number.

1315250325 is a `hidden beast` number, since 1 + 3 + 152 + 503 + 2 + 5 = 666.

It is not a de Polignac number, because 1315250325 - 2⁴ = 1315250309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315250329) 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 23 ways as a sum of consecutive naturals, for example, 973585 + ... + 974934.

Almost surely, 2^1315250325 is an apocalyptic number.

1315250325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1315250325 is a deficient number, since it is larger than the sum of its proper divisors (1100914475).

1315250325 is a wasteful number, since it uses less digits than its factorization.

1315250325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948538 (or 1948527 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1315250325 is about 36266.3800923114. The cubic root of 1315250325 is about 1095.6440197220.

Adding to 1315250325 its reverse (5230525131), we get a palindrome (6545775456).

The spelling of 1315250325 in words is "one billion, three hundred fifteen million, two hundred fifty thousand, three hundred twenty-five".