51552143453 has 2 divisors, whose sum is σ = 51552143454. Its totient is φ = 51552143452.

The previous prime is 51552143411. The next prime is 51552143507. The reversal of 51552143453 is 35434125515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48599525209 + 2952618244 = 220453^2 + 54338^2 .

It is a cyclic number.

It is not a de Polignac number, because 51552143453 - 2²⁶ = 51485034589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51552146453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25776071726 + 25776071727.

It is an arithmetic number, because the mean of its divisors is an integer number (25776071727).

Almost surely, 2^51552143453 is an apocalyptic number.

It is an amenable number.

51552143453 is a deficient number, since it is larger than the sum of its proper divisors (1).

51552143453 is an equidigital number, since it uses as much as digits as its factorization.

51552143453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180000, while the sum is 38.

Adding to 51552143453 its reverse (35434125515), we get a palindrome (86986268968).

The spelling of 51552143453 in words is "fifty-one billion, five hundred fifty-two million, one hundred forty-three thousand, four hundred fifty-three".