51552543213 has 6 divisors (see below), whose sum is σ = 74464784654. Its totient is φ = 34368362136.

The previous prime is 51552543209. The next prime is 51552543293. The reversal of 51552543213 is 31234525515.

51552543213 is a `hidden beast` number, since 51 + 5 + 52 + 543 + 2 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51511749444 + 40793769 = 226962^2 + 6387^2 .

It is not a de Polignac number, because 51552543213 - 2² = 51552543209 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 (51552543293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2864030170 + ... + 2864030187.

Almost surely, 2^51552543213 is an apocalyptic number.

It is an amenable number.

51552543213 is a deficient number, since it is larger than the sum of its proper divisors (22912241441).

51552543213 is a wasteful number, since it uses less digits than its factorization.

51552543213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728060363 (or 5728060360 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 51552543213 in words is "fifty-one billion, five hundred fifty-two million, five hundred forty-three thousand, two hundred thirteen".