55879620 has 48 divisors (see below), whose sum is σ = 160698048. Its totient is φ = 14497920.

The previous prime is 55879609. The next prime is 55879631. The reversal of 55879620 is 2697855.

55879620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55879609) and next prime (55879631).

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 15 ways as a sum of consecutive naturals, for example, 10366 + ... + 14805.

It is an arithmetic number, because the mean of its divisors is an integer number (3347876).

Almost surely, 2^55879620 is an apocalyptic number.

It is an amenable number.

55879620 is an abundant number, since it is smaller than the sum of its proper divisors (104818428).

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

55879620 is a wasteful number, since it uses less digits than its factorization.

55879620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25220 (or 25218 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 55879620 is about 7475.2672193039. The cubic root of 55879620 is about 382.3118986274.

The spelling of 55879620 in words is "fifty-five million, eight hundred seventy-nine thousand, six hundred twenty".