1252435402433 has 4 divisors (see below), whose sum is σ = 1252437657540. Its totient is φ = 1252433147328.

The previous prime is 1252435402423. The next prime is 1252435402453. The reversal of 1252435402433 is 3342045342521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57935045809 + 1194500356624 = 240697^2 + 1092932^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252435402433 - 2²⁶ = 1252368293569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252435402423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357341 + ... + 1622517.

It is an arithmetic number, because the mean of its divisors is an integer number (313109414385).

Almost surely, 2^{1252435402433} is an apocalyptic number.

It is an amenable number.

1252435402433 is a deficient number, since it is larger than the sum of its proper divisors (2255107).

1252435402433 is an equidigital number, since it uses as much as digits as its factorization.

1252435402433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255106.

The product of its (nonzero) digits is 345600, while the sum is 38.

The spelling of 1252435402433 in words is "one trillion, two hundred fifty-two billion, four hundred thirty-five million, four hundred two thousand, four hundred thirty-three".