55706487 has 12 divisors (see below), whose sum is σ = 74812920. Its totient is φ = 36870640.

The previous prime is 55706479. The next prime is 55706491. The reversal of 55706487 is 78460755.

55706487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55706487 - 2³ = 55706479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55706407) 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 11 ways as a sum of consecutive naturals, for example, 109189 + ... + 109697.

It is an arithmetic number, because the mean of its divisors is an integer number (6234410).

Almost surely, 2^55706487 is an apocalyptic number.

55706487 is a deficient number, since it is larger than the sum of its proper divisors (19106433).

55706487 is an equidigital number, since it uses as much as digits as its factorization.

55706487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 55706487 is about 7463.6778467455. The cubic root of 55706487 is about 381.9166484809.

The spelling of 55706487 in words is "fifty-five million, seven hundred six thousand, four hundred eighty-seven".