1325633488 has 20 divisors (see below), whose sum is σ = 2581458660. Its totient is φ = 659450624.

The previous prime is 1325633479. The next prime is 1325633489. The reversal of 1325633488 is 8843365231.

It can be written as a sum of positive squares in 2 ways, for example, as 694217104 + 631416384 = 26348^2 + 25128^2 .

It is a super-2 number, since 2×1325633488² = 3514608289014092288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325633489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207133 + ... + 213436.

It is an arithmetic number, because the mean of its divisors is an integer number (129072933).

Almost surely, 2^1325633488 is an apocalyptic number.

It is an amenable number.

1325633488 is a deficient number, since it is larger than the sum of its proper divisors (1255825172).

1325633488 is a wasteful number, since it uses less digits than its factorization.

1325633488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420774 (or 420768 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 1325633488 is about 36409.2500334736. The cubic root of 1325633488 is about 1098.5196306656.

The spelling of 1325633488 in words is "one billion, three hundred twenty-five million, six hundred thirty-three thousand, four hundred eighty-eight".