512452125105551 has 4 divisors (see below), whose sum is σ = 513202421043432. Its totient is φ = 511701829167672.

The previous prime is 512452125105521. The next prime is 512452125105593. The reversal of 512452125105551 is 155501521254215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 512452125105551 - 2¹⁰ = 512452125104527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512452125105521) 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, 375147967916 + ... + 375147969281.

It is an arithmetic number, because the mean of its divisors is an integer number (128300605260858).

Almost surely, 2^{512452125105551} is an apocalyptic number.

512452125105551 is a deficient number, since it is larger than the sum of its proper divisors (750295937881).

512452125105551 is an equidigital number, since it uses as much as digits as its factorization.

512452125105551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750295937880.

The product of its (nonzero) digits is 500000, while the sum is 44.

Adding to 512452125105551 its reverse (155501521254215), we get a palindrome (667953646359766).

The spelling of 512452125105551 in words is "five hundred twelve trillion, four hundred fifty-two billion, one hundred twenty-five million, one hundred five thousand, five hundred fifty-one".