51315522455 has 8 divisors (see below), whose sum is σ = 61583064000. Its totient is φ = 41049459936.

The previous prime is 51315522389. The next prime is 51315522457. The reversal of 51315522455 is 55422551315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51315522455 - 2¹⁶ = 51315456919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51315522457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291935 + ... + 433424.

It is an arithmetic number, because the mean of its divisors is an integer number (7697883000).

Almost surely, 2^51315522455 is an apocalyptic number.

51315522455 is a deficient number, since it is larger than the sum of its proper divisors (10267541545).

51315522455 is a wasteful number, since it uses less digits than its factorization.

51315522455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739513.

The product of its digits is 150000, while the sum is 38.

The spelling of 51315522455 in words is "fifty-one billion, three hundred fifteen million, five hundred twenty-two thousand, four hundred fifty-five".