55907930 has 16 divisors (see below), whose sum is σ = 108375624. Its totient is φ = 20642880.

The previous prime is 55907927. The next prime is 55907941. The reversal of 55907930 is 3970955.

55907930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 19775809 + 36132121 = 4447^2 + 6011^2 .

It is a nialpdrome in base 13.

It is an unprimeable number.

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, 214901 + ... + 215160.

Almost surely, 2^55907930 is an apocalyptic number.

55907930 is a deficient number, since it is larger than the sum of its proper divisors (52467694).

55907930 is a wasteful number, since it uses less digits than its factorization.

55907930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430081.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 55907930 is about 7477.1605573239. The cubic root of 55907930 is about 382.3764506208.

The spelling of 55907930 in words is "fifty-five million, nine hundred seven thousand, nine hundred thirty".