1252313012553 has 8 divisors (see below), whose sum is σ = 1757632298400. Its totient is φ = 790934534208.

The previous prime is 1252313012549. The next prime is 1252313012611. The reversal of 1252313012553 is 3552103132521.

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

It is not a de Polignac number, because 1252313012553 - 2² = 1252313012549 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1252313012513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10985201808 + ... + 10985201921.

It is an arithmetic number, because the mean of its divisors is an integer number (219704037300).

Almost surely, 2^{1252313012553} is an apocalyptic number.

It is an amenable number.

1252313012553 is a deficient number, since it is larger than the sum of its proper divisors (505319285847).

1252313012553 is a wasteful number, since it uses less digits than its factorization.

1252313012553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21970403751.

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 1252313012553 in words is "one trillion, two hundred fifty-two billion, three hundred thirteen million, twelve thousand, five hundred fifty-three".