1252043066535 has 8 divisors (see below), whose sum is σ = 2003268906480. Its totient is φ = 667756302144.

The previous prime is 1252043066503. The next prime is 1252043066623. The reversal of 1252043066535 is 5356603402521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252043066535 - 2⁵ = 1252043066503 is a prime.

It is a super-2 number, since 2×1252043066535² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41734768870 + ... + 41734768899.

It is an arithmetic number, because the mean of its divisors is an integer number (250408613310).

Almost surely, 2^{1252043066535} is an apocalyptic number.

1252043066535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252043066535 is a deficient number, since it is larger than the sum of its proper divisors (751225839945).

1252043066535 is an equidigital number, since it uses as much as digits as its factorization.

1252043066535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83469537777.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 1252043066535 in words is "one trillion, two hundred fifty-two billion, forty-three million, sixty-six thousand, five hundred thirty-five".