53315040 has 96 divisors (see below), whose sum is σ = 173408256. Its totient is φ = 13754880.

The previous prime is 53315033. The next prime is 53315051. The reversal of 53315040 is 4051335.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 53314998 and 53315016.

It is a congruent number.

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, 13089 + ... + 16671.

It is an arithmetic number, because the mean of its divisors is an integer number (1806336).

Almost surely, 2^53315040 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 53315040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86704128).

53315040 is an abundant number, since it is smaller than the sum of its proper divisors (120093216).

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

53315040 is a wasteful number, since it uses less digits than its factorization.

53315040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632 (or 3624 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 53315040 is about 7301.7148670706. The cubic root of 53315040 is about 376.3713699166.

Adding to 53315040 its reverse (4051335), we get a palindrome (57366375).

The spelling of 53315040 in words is "fifty-three million, three hundred fifteen thousand, forty".