55720526 has 16 divisors (see below), whose sum is σ = 89286624. Its totient is φ = 25987584.

The previous prime is 55720481. The next prime is 55720541. The reversal of 55720526 is 62502755.

55720526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55720492 and 55720501.

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 7 ways as a sum of consecutive naturals, for example, 3410 + ... + 11093.

It is an arithmetic number, because the mean of its divisors is an integer number (5580414).

Almost surely, 2^55720526 is an apocalyptic number.

55720526 is a deficient number, since it is larger than the sum of its proper divisors (33566098).

55720526 is a wasteful number, since it uses less digits than its factorization.

55720526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14635.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 55720526 is about 7464.6182755718. The cubic root of 55720526 is about 381.9487289905.

The spelling of 55720526 in words is "fifty-five million, seven hundred twenty thousand, five hundred twenty-six".