51143225453 has 4 divisors (see below), whose sum is σ = 51449472480. Its totient is φ = 50836978428.

The previous prime is 51143225443. The next prime is 51143225461. The reversal of 51143225453 is 35452234115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35452234115 = 5 ⋅7090446823.

It is a cyclic number.

It is not a de Polignac number, because 51143225453 - 2⁸ = 51143225197 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 (51143225423) 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, 153123263 + ... + 153123596.

It is an arithmetic number, because the mean of its divisors is an integer number (12862368120).

Almost surely, 2^51143225453 is an apocalyptic number.

It is an amenable number.

51143225453 is a deficient number, since it is larger than the sum of its proper divisors (306247027).

51143225453 is a wasteful number, since it uses less digits than its factorization.

51143225453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306247026.

The product of its digits is 72000, while the sum is 35.

Adding to 51143225453 its reverse (35452234115), we get a palindrome (86595459568).

The spelling of 51143225453 in words is "fifty-one billion, one hundred forty-three million, two hundred twenty-five thousand, four hundred fifty-three".