53465240 has 64 divisors (see below), whose sum is σ = 128044800. Its totient is φ = 20034432.

The previous prime is 53465233. The next prime is 53465281. The reversal of 53465240 is 4256435.

53465240 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 15 ways as a sum of consecutive naturals, for example, 77939 + ... + 78621.

It is an arithmetic number, because the mean of its divisors is an integer number (2000700).

Almost surely, 2^53465240 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 53465240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64022400).

53465240 is an abundant number, since it is smaller than the sum of its proper divisors (74579560).

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

53465240 is a wasteful number, since it uses less digits than its factorization.

53465240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 53465240 is about 7311.9928883992. The cubic root of 53465240 is about 376.7244783829.

The spelling of 53465240 in words is "fifty-three million, four hundred sixty-five thousand, two hundred forty".