51100544502 has 48 divisors (see below), whose sum is σ = 127372707072. Its totient is φ = 14503460400.

The previous prime is 51100544471. The next prime is 51100544531. The reversal of 51100544502 is 20544500115.

51100544502 is a `hidden beast` number, since 5 + 1 + 100 + 54 + 4 + 502 = 666.

It is a super-2 number, since 2×51100544502² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1323888 + ... + 1361939.

It is an arithmetic number, because the mean of its divisors is an integer number (2653598064).

Almost surely, 2^51100544502 is an apocalyptic number.

51100544502 is an abundant number, since it is smaller than the sum of its proper divisors (76272162570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51100544502 is a wasteful number, since it uses less digits than its factorization.

51100544502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685993 (or 2685990 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 51100544502 in words is "fifty-one billion, one hundred million, five hundred forty-four thousand, five hundred two".