55780710 has 32 divisors (see below), whose sum is σ = 134479872. Its totient is φ = 14807520.

The previous prime is 55780693. The next prime is 55780721. The reversal of 55780710 is 1708755.

55780710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55780710² = 6222975216208200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 2715 + ... + 10905.

It is an arithmetic number, because the mean of its divisors is an integer number (4202496).

Almost surely, 2^55780710 is an apocalyptic number.

55780710 is an abundant number, since it is smaller than the sum of its proper divisors (78699162).

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

55780710 is a wasteful number, since it uses less digits than its factorization.

55780710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8428.

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 55780710 is about 7468.6484721133. The cubic root of 55780710 is about 382.0861943779.

The spelling of 55780710 in words is "fifty-five million, seven hundred eighty thousand, seven hundred ten".