55861050105 has 48 divisors (see below), whose sum is σ = 110885608704. Its totient is φ = 25483973760.

The previous prime is 55861050101. The next prime is 55861050131. The reversal of 55861050105 is 50105016855.

55861050105 is a `hidden beast` number, since 5 + 586 + 10 + 50 + 10 + 5 = 666.

It is not a de Polignac number, because 55861050105 - 2² = 55861050101 is a prime.

It is a super-2 number, since 2×55861050105² (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 55861050105.

It is not an unprimeable number, because it can be changed into a prime (55861050101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28666 + ... + 335475.

It is an arithmetic number, because the mean of its divisors is an integer number (2310116848).

Almost surely, 2^55861050105 is an apocalyptic number.

It is an amenable number.

55861050105 is a deficient number, since it is larger than the sum of its proper divisors (55024558599).

55861050105 is a wasteful number, since it uses less digits than its factorization.

55861050105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364646 (or 364643 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The spelling of 55861050105 in words is "fifty-five billion, eight hundred sixty-one million, fifty thousand, one hundred five".