1252302544520 has 32 divisors (see below), whose sum is σ = 2983426651800. Its totient is φ = 471455075328.

The previous prime is 1252302544517. The next prime is 1252302544543. The reversal of 1252302544520 is 254452032521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1166836360804 + 85466183716 = 1080202^2 + 292346^2 .

It is a super-2 number, since 2×1252302544520² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920810015 + ... + 920811374.

Almost surely, 2^{1252302544520} is an apocalyptic number.

1252302544520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252302544520 is an abundant number, since it is smaller than the sum of its proper divisors (1731124107280).

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

1252302544520 is a wasteful number, since it uses less digits than its factorization.

1252302544520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841621417 (or 1841621413 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 1252302544520 in words is "one trillion, two hundred fifty-two billion, three hundred two million, five hundred forty-four thousand, five hundred twenty".