55861494 has 16 divisors (see below), whose sum is σ = 120317232. Its totient is φ = 17188128.

The previous prime is 55861493. The next prime is 55861529. The reversal of 55861494 is 49416855.

55861494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55861493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358009 + ... + 358164.

It is an arithmetic number, because the mean of its divisors is an integer number (7519827).

Almost surely, 2^55861494 is an apocalyptic number.

55861494 is an abundant number, since it is smaller than the sum of its proper divisors (64455738).

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

55861494 is a wasteful number, since it uses less digits than its factorization.

55861494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716191.

The product of its digits is 172800, while the sum is 42.

The square root of 55861494 is about 7474.0547228395. The cubic root of 55861494 is about 382.2705565729.

It can be divided in two parts, 5586149 and 4, that added together give a triangular number (5586153 = T₃₃₄₂).

The spelling of 55861494 in words is "fifty-five million, eight hundred sixty-one thousand, four hundred ninety-four".