55927770 has 16 divisors (see below), whose sum is σ = 134226720. Its totient is φ = 14914064.

The previous prime is 55927769. The next prime is 55927777. The reversal of 55927770 is 7772955.

It is not an unprimeable number, because it can be changed into a prime (55927777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932100 + ... + 932159.

It is an arithmetic number, because the mean of its divisors is an integer number (8389170).

Almost surely, 2^55927770 is an apocalyptic number.

55927770 is an abundant number, since it is smaller than the sum of its proper divisors (78298950).

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

55927770 is a wasteful number, since it uses less digits than its factorization.

55927770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864269.

The product of its (nonzero) digits is 154350, while the sum is 42.

The square root of 55927770 is about 7478.4871464755. The cubic root of 55927770 is about 382.4216764744.

The spelling of 55927770 in words is "fifty-five million, nine hundred twenty-seven thousand, seven hundred seventy".