53050440 has 96 divisors (see below), whose sum is σ = 163169280. Its totient is φ = 13797504.

The previous prime is 53050429. The next prime is 53050447. The reversal of 53050440 is 4405035.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53050447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 417657 + ... + 417783.

It is an arithmetic number, because the mean of its divisors is an integer number (1699680).

Almost surely, 2^53050440 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 53050440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81584640).

53050440 is an abundant number, since it is smaller than the sum of its proper divisors (110118840).

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

53050440 is a wasteful number, since it uses less digits than its factorization.

53050440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 53050440 is about 7283.5732988692. The cubic root of 53050440 is about 375.7476993089.

Adding to 53050440 its reverse (4405035), we get a palindrome (57455475).

The spelling of 53050440 in words is "fifty-three million, fifty thousand, four hundred forty".