53025040 has 80 divisors (see below), whose sum is σ = 131991552. Its totient is φ = 19740672.

The previous prime is 53025031. The next prime is 53025053. The reversal of 53025040 is 4052035.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 53024999 and 53025017.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172567 + ... + 172873.

Almost surely, 2^53025040 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 53025040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65995776).

53025040 is an abundant number, since it is smaller than the sum of its proper divisors (78966512).

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

53025040 is a wasteful number, since it uses less digits than its factorization.

53025040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 53025040 is about 7281.8294404634. The cubic root of 53025040 is about 375.6877217030.

Adding to 53025040 its reverse (4052035), we get a palindrome (57077075).

The spelling of 53025040 in words is "fifty-three million, twenty-five thousand, forty".