1355689552 has 80 divisors (see below), whose sum is σ = 3205509120. Its totient is φ = 542779776.

The previous prime is 1355689537. The next prime is 1355689553. The reversal of 1355689552 is 2559865531.

It is a super-2 number, since 2×1355689552² = 3675788322803921408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1355689496 and 1355689505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355689553) 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 15 ways as a sum of consecutive naturals, for example, 104649 + ... + 116887.

It is an arithmetic number, because the mean of its divisors is an integer number (40068864).

Almost surely, 2^1355689552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1355689552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1602754560).

1355689552 is an abundant number, since it is smaller than the sum of its proper divisors (1849819568).

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

1355689552 is a wasteful number, since it uses less digits than its factorization.

1355689552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12320 (or 12314 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 49.

The square root of 1355689552 is about 36819.6897325331. The cubic root of 1355689552 is about 1106.7599023075.

The spelling of 1355689552 in words is "one billion, three hundred fifty-five million, six hundred eighty-nine thousand, five hundred fifty-two".