1325521210 has 16 divisors (see below), whose sum is σ = 2569472136. Its totient is φ = 489423168.

The previous prime is 1325521207. The next prime is 1325521217. The reversal of 1325521210 is 121255231.

It can be written as a sum of positive squares in 4 ways, for example, as 1020355249 + 305165961 = 31943^2 + 17469^2 .

It is not an unprimeable number, because it can be changed into a prime (1325521217) 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, 5098029 + ... + 5098288.

Almost surely, 2^1325521210 is an apocalyptic number.

1325521210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1325521210 is a deficient number, since it is larger than the sum of its proper divisors (1243950926).

1325521210 is a wasteful number, since it uses less digits than its factorization.

1325521210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196337.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1325521210 is about 36407.7081124314. The cubic root of 1325521210 is about 1098.4886157909.

Adding to 1325521210 its reverse (121255231), we get a palindrome (1446776441).

The spelling of 1325521210 in words is "one billion, three hundred twenty-five million, five hundred twenty-one thousand, two hundred ten".