523451341253 has 4 divisors (see below), whose sum is σ = 533327781708. Its totient is φ = 513574900800.

The previous prime is 523451341249. The next prime is 523451341289. The reversal of 523451341253 is 352143154325.

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 323586909409 + 199864431844 = 568847^2 + 447062^2 .

It is a cyclic number.

It is not a de Polignac number, because 523451341253 - 2² = 523451341249 is a prime.

It is a super-2 number, since 2×523451341253² (a number of 24 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 (523451341753) 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, 4938220148 + ... + 4938220253.

It is an arithmetic number, because the mean of its divisors is an integer number (133331945427).

Almost surely, 2^523451341253 is an apocalyptic number.

523451341253 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

523451341253 is a deficient number, since it is larger than the sum of its proper divisors (9876440455).

523451341253 is an equidigital number, since it uses as much as digits as its factorization.

523451341253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9876440454.

The product of its digits is 216000, while the sum is 38.

Adding to 523451341253 its reverse (352143154325), we get a palindrome (875594495578).

The spelling of 523451341253 in words is "five hundred twenty-three billion, four hundred fifty-one million, three hundred forty-one thousand, two hundred fifty-three".