51100544545 has 64 divisors (see below), whose sum is σ = 67927652352. Its totient is φ = 36744192000.

The previous prime is 51100544543. The next prime is 51100544569. The reversal of 51100544545 is 54544500115.

It is not a de Polignac number, because 51100544545 - 2¹ = 51100544543 is a prime.

It is a super-2 number, since 2×51100544545² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51100544545.

It is not an unprimeable number, because it can be changed into a prime (51100544543) 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 in 63 ways as a sum of consecutive naturals, for example, 57610092 + ... + 57610978.

It is an arithmetic number, because the mean of its divisors is an integer number (1061369568).

Almost surely, 2^51100544545 is an apocalyptic number.

It is an amenable number.

51100544545 is a deficient number, since it is larger than the sum of its proper divisors (16827107807).

51100544545 is a wasteful number, since it uses less digits than its factorization.

51100544545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282.

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 51100544545 in words is "fifty-one billion, one hundred million, five hundred forty-four thousand, five hundred forty-five".