51532154789 has 2 divisors, whose sum is σ = 51532154790. Its totient is φ = 51532154788.

The previous prime is 51532154777. The next prime is 51532154809. The reversal of 51532154789 is 98745123515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51116688100 + 415466689 = 226090^2 + 20383^2 .

It is a cyclic number.

It is not a de Polignac number, because 51532154789 - 2⁸ = 51532154533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51532154489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25766077394 + 25766077395.

It is an arithmetic number, because the mean of its divisors is an integer number (25766077395).

Almost surely, 2^51532154789 is an apocalyptic number.

It is an amenable number.

51532154789 is a deficient number, since it is larger than the sum of its proper divisors (1).

51532154789 is an equidigital number, since it uses as much as digits as its factorization.

51532154789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 50.

The spelling of 51532154789 in words is "fifty-one billion, five hundred thirty-two million, one hundred fifty-four thousand, seven hundred eighty-nine".