1325252620 has 24 divisors (see below), whose sum is σ = 2804949504. Its totient is φ = 525926016.

The previous prime is 1325252611. The next prime is 1325252623. The reversal of 1325252620 is 262525231.

It is not an unprimeable number, because it can be changed into a prime (1325252623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258337 + ... + 263416.

It is an arithmetic number, because the mean of its divisors is an integer number (116872896).

Almost surely, 2^1325252620 is an apocalyptic number.

1325252620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325252620 is an abundant number, since it is smaller than the sum of its proper divisors (1479696884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1325252620 is a wasteful number, since it uses less digits than its factorization.

1325252620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521889 (or 521887 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1325252620 is about 36404.0192835901. The cubic root of 1325252620 is about 1098.4144152964.

Adding to 1325252620 its reverse (262525231), we get a palindrome (1587777851).

The spelling of 1325252620 in words is "one billion, three hundred twenty-five million, two hundred fifty-two thousand, six hundred twenty".