55861107 has 8 divisors (see below), whose sum is σ = 74625984. Its totient is φ = 37168488.

The previous prime is 55861093. The next prime is 55861109. The reversal of 55861107 is 70116855.

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

It is not a de Polignac number, because 55861107 - 2¹⁰ = 55860083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55861109) 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, 16233 + ... + 19370.

It is an arithmetic number, because the mean of its divisors is an integer number (9328248).

Almost surely, 2^55861107 is an apocalyptic number.

55861107 is a deficient number, since it is larger than the sum of its proper divisors (18764877).

55861107 is a wasteful number, since it uses less digits than its factorization.

55861107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36129.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 55861107 is about 7474.0288332331. The cubic root of 55861107 is about 382.2696737999.

The spelling of 55861107 in words is "fifty-five million, eight hundred sixty-one thousand, one hundred seven".