53455620 has 24 divisors (see below), whose sum is σ = 149675904. Its totient is φ = 14254816.

The previous prime is 53455609. The next prime is 53455621. The reversal of 53455620 is 2655435.

53455620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (53455621) 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, 445404 + ... + 445523.

It is an arithmetic number, because the mean of its divisors is an integer number (6236496).

Almost surely, 2^53455620 is an apocalyptic number.

It is an amenable number.

53455620 is an abundant number, since it is smaller than the sum of its proper divisors (96220284).

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

53455620 is a wasteful number, since it uses less digits than its factorization.

53455620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890939 (or 890937 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 53455620 is about 7311.3350354091. The cubic root of 53455620 is about 376.7018823507.

The spelling of 53455620 in words is "fifty-three million, four hundred fifty-five thousand, six hundred twenty".