53030253440 has 64 divisors (see below), whose sum is σ = 128667724560. Its totient is φ = 20895485952.

The previous prime is 53030253431. The next prime is 53030253443. The reversal of 53030253440 is 4435203035.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53030253443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575477 + ... + 661236.

Almost surely, 2^53030253440 is an apocalyptic number.

It is an amenable number.

53030253440 is an abundant number, since it is smaller than the sum of its proper divisors (75637471120).

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

53030253440 is a wasteful number, since it uses less digits than its factorization.

53030253440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236799 (or 1236787 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 29.

Adding to 53030253440 its reverse (4435203035), we get a palindrome (57465456475).

The spelling of 53030253440 in words is "fifty-three billion, thirty million, two hundred fifty-three thousand, four hundred forty".