53104240 has 240 divisors, whose sum is σ = 162846720. Its totient is φ = 15966720.

The previous prime is 53104231. The next prime is 53104241. The reversal of 53104240 is 4240135.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53104241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1713025 + ... + 1713055.

It is an arithmetic number, because the mean of its divisors is an integer number (678528).

Almost surely, 2^53104240 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 53104240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81423360).

53104240 is an abundant number, since it is smaller than the sum of its proper divisors (109742480).

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

53104240 is a wasteful number, since it uses less digits than its factorization.

53104240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 53104240 is about 7287.2656051498. The cubic root of 53104240 is about 375.8746752992.

Adding to 53104240 its reverse (4240135), we get a palindrome (57344375).

The spelling of 53104240 in words is "fifty-three million, one hundred four thousand, two hundred forty".