55920425 has 24 divisors (see below), whose sum is σ = 77420640. Its totient is φ = 39715200.

The previous prime is 55920419. The next prime is 55920427. The reversal of 55920425 is 52402955.

55920425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55920425 - 2⁸ = 55920169 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55920391 and 55920400.

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 23 ways as a sum of consecutive naturals, for example, 9461 + ... + 14189.

It is an arithmetic number, because the mean of its divisors is an integer number (3225860).

Almost surely, 2^55920425 is an apocalyptic number.

55920425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55920425 is a deficient number, since it is larger than the sum of its proper divisors (21500215).

55920425 is a wasteful number, since it uses less digits than its factorization.

55920425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793 (or 4788 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 55920425 is about 7477.9960550939. The cubic root of 55920425 is about 382.4049345816.

The spelling of 55920425 in words is "fifty-five million, nine hundred twenty thousand, four hundred twenty-five".