1252548452521 has 8 divisors (see below), whose sum is σ = 1337537836800. Its totient is φ = 1170345605520.

The previous prime is 1252548452503. The next prime is 1252548452543.

1252548452521 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 1252548452521 - 2¹⁷ = 1252548321449 is a prime.

It is a super-3 number, since 3×1252548452521³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252548452501) by changing a digit.

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, 696633391 + ... + 696635188.

It is an arithmetic number, because the mean of its divisors is an integer number (167192229600).

Almost surely, 2^{1252548452521} is an apocalyptic number.

It is an amenable number.

1252548452521 is a deficient number, since it is larger than the sum of its proper divisors (84989384279).

1252548452521 is a wasteful number, since it uses less digits than its factorization.

1252548452521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393268639.

The product of its digits is 1280000, while the sum is 46.

The spelling of 1252548452521 in words is "one trillion, two hundred fifty-two billion, five hundred forty-eight million, four hundred fifty-two thousand, five hundred twenty-one".