51444213255 has 24 divisors (see below), whose sum is σ = 89242620480. Its totient is φ = 27414559680.

The previous prime is 51444213253. The next prime is 51444213259. The reversal of 51444213255 is 55231244415.

51444213255 is a `hidden beast` number, since 514 + 4 + 4 + 2 + 132 + 5 + 5 = 666.

51444213255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51444213255 - 2¹ = 51444213253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51444213251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 409791 + ... + 520400.

It is an arithmetic number, because the mean of its divisors is an integer number (3718442520).

Almost surely, 2^51444213255 is an apocalyptic number.

51444213255 is a deficient number, since it is larger than the sum of its proper divisors (37798407225).

51444213255 is a wasteful number, since it uses less digits than its factorization.

51444213255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931431 (or 931428 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The spelling of 51444213255 in words is "fifty-one billion, four hundred forty-four million, two hundred thirteen thousand, two hundred fifty-five".