511404040453 has 2 divisors, whose sum is σ = 511404040454. Its totient is φ = 511404040452.

The previous prime is 511404040351. The next prime is 511404040519. The reversal of 511404040453 is 354040404115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503415792324 + 7988248129 = 709518^2 + 89377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511404040453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511404040153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255702020226 + 255702020227.

It is an arithmetic number, because the mean of its divisors is an integer number (255702020227).

Almost surely, 2^511404040453 is an apocalyptic number.

It is an amenable number.

511404040453 is a deficient number, since it is larger than the sum of its proper divisors (1).

511404040453 is an equidigital number, since it uses as much as digits as its factorization.

511404040453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 511404040453 its reverse (354040404115), we get a palindrome (865444444568).

The spelling of 511404040453 in words is "five hundred eleven billion, four hundred four million, forty thousand, four hundred fifty-three".