55861075 has 12 divisors (see below), whose sum is σ = 70104888. Its totient is φ = 44148800.

The previous prime is 55861073. The next prime is 55861079. The reversal of 55861075 is 57016855.

It is not a de Polignac number, because 55861075 - 2¹ = 55861073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55861073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11386 + ... + 15535.

It is an arithmetic number, because the mean of its divisors is an integer number (5842074).

Almost surely, 2^55861075 is an apocalyptic number.

55861075 is a deficient number, since it is larger than the sum of its proper divisors (14243813).

55861075 is a wasteful number, since it uses less digits than its factorization.

55861075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27014 (or 27009 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 55861075 is about 7474.0266924865. The cubic root of 55861075 is about 382.2696008056.

The spelling of 55861075 in words is "fifty-five million, eight hundred sixty-one thousand, seventy-five".