1352256520 has 16 divisors (see below), whose sum is σ = 3042577260. Its totient is φ = 540902592.

The previous prime is 1352256497. The next prime is 1352256523. The reversal of 1352256520 is 256522531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1345569124 + 6687396 = 36682^2 + 2586^2 .

It is not an unprimeable number, because it can be changed into a prime (1352256523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16903167 + ... + 16903246.

Almost surely, 2^1352256520 is an apocalyptic number.

1352256520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352256520 is an abundant number, since it is smaller than the sum of its proper divisors (1690320740).

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

1352256520 is a wasteful number, since it uses less digits than its factorization.

1352256520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33806424 (or 33806420 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1352256520 is about 36773.0406684027. The cubic root of 1352256520 is about 1105.8248913171.

The spelling of 1352256520 in words is "one billion, three hundred fifty-two million, two hundred fifty-six thousand, five hundred twenty".