53573240 has 64 divisors (see below), whose sum is σ = 139700160. Its totient is φ = 18109440.

The previous prime is 53573209. The next prime is 53573243. The reversal of 53573240 is 4237535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53573243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19130 + ... + 21750.

It is an arithmetic number, because the mean of its divisors is an integer number (2182815).

Almost surely, 2^53573240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53573240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69850080).

53573240 is an abundant number, since it is smaller than the sum of its proper divisors (86126920).

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

53573240 is a wasteful number, since it uses less digits than its factorization.

53573240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712 (or 2708 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 53573240 is about 7319.3742901972. The cubic root of 53573240 is about 376.9779694294.

The spelling of 53573240 in words is "fifty-three million, five hundred seventy-three thousand, two hundred forty".