51950604555 has 128 divisors (see below), whose sum is σ = 104629017600. Its totient is φ = 24298444800.

The previous prime is 51950604533. The next prime is 51950604569. The reversal of 51950604555 is 55540605915.

51950604555 is a `hidden beast` number, since 5 + 1 + 95 + 0 + 6 + 0 + 4 + 555 = 666.

It is not a de Polignac number, because 51950604555 - 2⁵ = 51950604523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 51950604555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2650140 + ... + 2669670.

It is an arithmetic number, because the mean of its divisors is an integer number (817414200).

Almost surely, 2^51950604555 is an apocalyptic number.

51950604555 is an abundant number, since it is smaller than the sum of its proper divisors (52678413045).

51950604555 is a wasteful number, since it uses less digits than its factorization.

51950604555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19642 (or 19636 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 51950604555 in words is "fifty-one billion, nine hundred fifty million, six hundred four thousand, five hundred fifty-five".