51552156473 has 2 divisors, whose sum is σ = 51552156474. Its totient is φ = 51552156472.

The previous prime is 51552156463. The next prime is 51552156479. The reversal of 51552156473 is 37465125515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39105853504 + 12446302969 = 197752^2 + 111563^2 .

It is a cyclic number.

It is not a de Polignac number, because 51552156473 - 2³⁴ = 34372287289 is a prime.

It is a super-3 number, since 3×51552156473³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (51552156479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25776078236 + 25776078237.

It is an arithmetic number, because the mean of its divisors is an integer number (25776078237).

Almost surely, 2^51552156473 is an apocalyptic number.

It is an amenable number.

51552156473 is a deficient number, since it is larger than the sum of its proper divisors (1).

51552156473 is an equidigital number, since it uses as much as digits as its factorization.

51552156473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630000, while the sum is 44.

The spelling of 51552156473 in words is "fifty-one billion, five hundred fifty-two million, one hundred fifty-six thousand, four hundred seventy-three".