1252352240053 has 4 divisors (see below), whose sum is σ = 1255414226380. Its totient is φ = 1249290253728.

The previous prime is 1252352240033. The next prime is 1252352240071. The reversal of 1252352240053 is 3500422532521.

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 730754844964 + 521597395089 = 854842^2 + 722217^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252352240053 - 2⁵ = 1252352240021 is a prime.

It is a super-2 number, since 2×1252352240053² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252352240033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530992550 + ... + 1530993367.

It is an arithmetic number, because the mean of its divisors is an integer number (313853556595).

Almost surely, 2^{1252352240053} is an apocalyptic number.

It is an amenable number.

1252352240053 is a deficient number, since it is larger than the sum of its proper divisors (3061986327).

1252352240053 is an equidigital number, since it uses as much as digits as its factorization.

1252352240053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061986326.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 1252352240053 its reverse (3500422532521), we get a palindrome (4752774772574).

The spelling of 1252352240053 in words is "one trillion, two hundred fifty-two billion, three hundred fifty-two million, two hundred forty thousand, fifty-three".