55920426 has 16 divisors (see below), whose sum is σ = 112332000. Its totient is φ = 18558288.

The previous prime is 55920419. The next prime is 55920427. The reversal of 55920426 is 62402955.

55920426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55920427) by changing a digit.

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, 18976 + ... + 21723.

It is an arithmetic number, because the mean of its divisors is an integer number (7020750).

Almost surely, 2^55920426 is an apocalyptic number.

55920426 is the 4730-th centered pentagonal number.

55920426 is an abundant number, since it is smaller than the sum of its proper divisors (56411574).

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

55920426 is a wasteful number, since it uses less digits than its factorization.

55920426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40933.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 55920426 is about 7477.9961219567. The cubic root of 55920426 is about 382.4049368611.

The spelling of 55920426 in words is "fifty-five million, nine hundred twenty thousand, four hundred twenty-six".