55701720 has 48 divisors (see below), whose sum is σ = 181031760. Its totient is φ = 14853696.

The previous prime is 55701703. The next prime is 55701769. The reversal of 55701720 is 2710755.

55701720 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 2×55701720² = 6205363221916800, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 77004 + ... + 77723.

It is an arithmetic number, because the mean of its divisors is an integer number (3771495).

Almost surely, 2^55701720 is an apocalyptic number.

It is an amenable number.

55701720 is an abundant number, since it is smaller than the sum of its proper divisors (125330040).

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

55701720 is a wasteful number, since it uses less digits than its factorization.

55701720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154744 (or 154737 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 55701720 is about 7463.3584933326. The cubic root of 55701720 is about 381.9057541865.

The spelling of 55701720 in words is "fifty-five million, seven hundred one thousand, seven hundred twenty".