55939599 has 8 divisors (see below), whose sum is σ = 82873520. Its totient is φ = 37293048.

The previous prime is 55939589. The next prime is 55939607. The reversal of 55939599 is 99593955.

55939599 is a `hidden beast` number, since 559 + 39 + 59 + 9 = 666.

55939599 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 55939599 - 2⁵ = 55939567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55939589) 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, 1035892 + ... + 1035945.

It is an arithmetic number, because the mean of its divisors is an integer number (10359190).

Almost surely, 2^55939599 is an apocalyptic number.

55939599 is a deficient number, since it is larger than the sum of its proper divisors (26933921).

55939599 is a wasteful number, since it uses less digits than its factorization.

55939599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071846 (or 2071840 counting only the distinct ones).

The product of its digits is 2460375, while the sum is 54.

The square root of 55939599 is about 7479.2779731736. The cubic root of 55939599 is about 382.4486359326.

The spelling of 55939599 in words is "fifty-five million, nine hundred thirty-nine thousand, five hundred ninety-nine".