55739906 has 8 divisors (see below), whose sum is σ = 88528140. Its totient is φ = 26230528.

The previous prime is 55739903. The next prime is 55739917. The reversal of 55739906 is 60993755.

It can be written as a sum of positive squares in 2 ways, for example, as 54626881 + 1113025 = 7391^2 + 1055^2 .

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

It is not an unprimeable number, because it can be changed into a prime (55739903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819671 + ... + 819738.

Almost surely, 2^55739906 is an apocalyptic number.

55739906 is a deficient number, since it is larger than the sum of its proper divisors (32788234).

55739906 is a wasteful number, since it uses less digits than its factorization.

55739906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639428.

The product of its (nonzero) digits is 255150, while the sum is 44.

The square root of 55739906 is about 7465.9162866992. The cubic root of 55739906 is about 381.9930053634.

The spelling of 55739906 in words is "fifty-five million, seven hundred thirty-nine thousand, nine hundred six".