53440452320 has 48 divisors (see below), whose sum is σ = 126271208448. Its totient is φ = 21373109760.

The previous prime is 53440452287. The next prime is 53440452349. The reversal of 53440452320 is 2325404435.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331750 + ... + 1371290.

It is an arithmetic number, because the mean of its divisors is an integer number (2630650176).

Almost surely, 2^53440452320 is an apocalyptic number.

It is an amenable number.

53440452320 is an abundant number, since it is smaller than the sum of its proper divisors (72830756128).

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

53440452320 is a wasteful number, since it uses less digits than its factorization.

53440452320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48003 (or 47995 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 53440452320 its reverse (2325404435), we get a palindrome (55765856755).

The spelling of 53440452320 in words is "fifty-three billion, four hundred forty million, four hundred fifty-two thousand, three hundred twenty".