920423055 has 32 divisors (see below), whose sum is σ = 1514004480. Its totient is φ = 477308160.

The previous prime is 920423051. The next prime is 920423057. The reversal of 920423055 is 550324029.

It is not a de Polignac number, because 920423055 - 2² = 920423051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920423051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71826 + ... + 83664.

It is an arithmetic number, because the mean of its divisors is an integer number (47312640).

Almost surely, 2^920423055 is an apocalyptic number.

920423055 is a deficient number, since it is larger than the sum of its proper divisors (593581425).

920423055 is a wasteful number, since it uses less digits than its factorization.

920423055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11991.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 920423055 is about 30338.4748298262. The cubic root of 920423055 is about 972.7378825642.

The spelling of 920423055 in words is "nine hundred twenty million, four hundred twenty-three thousand, fifty-five".