1325253223515 has 64 divisors (see below), whose sum is σ = 2318662112256. Its totient is φ = 642462899712.

The previous prime is 1325253223421. The next prime is 1325253223517. The reversal of 1325253223515 is 5153223525231.

It is not a de Polignac number, because 1325253223515 - 2⁹ = 1325253223003 is a prime.

It is a super-2 number, since 2×1325253223515² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1325253223517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3294289 + ... + 3674621.

It is an arithmetic number, because the mean of its divisors is an integer number (36229095504).

Almost surely, 2^{1325253223515} is an apocalyptic number.

1325253223515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1325253223515 is a deficient number, since it is larger than the sum of its proper divisors (993408888741).

1325253223515 is a wasteful number, since it uses less digits than its factorization.

1325253223515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380628.

The product of its digits is 270000, while the sum is 39.

Adding to 1325253223515 its reverse (5153223525231), we get a palindrome (6478476748746).

The spelling of 1325253223515 in words is "one trillion, three hundred twenty-five billion, two hundred fifty-three million, two hundred twenty-three thousand, five hundred fifteen".