53257020 has 24 divisors (see below), whose sum is σ = 149119824. Its totient is φ = 14201856.

The previous prime is 53256989. The next prime is 53257081. The reversal of 53257020 is 2075235.

53257020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 443749 + ... + 443868.

It is an arithmetic number, because the mean of its divisors is an integer number (6213326).

Almost surely, 2^53257020 is an apocalyptic number.

It is an amenable number.

53257020 is an abundant number, since it is smaller than the sum of its proper divisors (95862804).

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

53257020 is a wasteful number, since it uses less digits than its factorization.

53257020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887629 (or 887627 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 53257020 is about 7297.7407462858. The cubic root of 53257020 is about 376.2347918637.

The spelling of 53257020 in words is "fifty-three million, two hundred fifty-seven thousand, twenty".