53305748540 has 48 divisors (see below), whose sum is σ = 126329626080. Its totient is φ = 18715495680.

The previous prime is 53305748521. The next prime is 53305748549. The reversal of 53305748540 is 4584750335.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 53305748491 and 53305748500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53305748549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4171187 + ... + 4183946.

It is an arithmetic number, because the mean of its divisors is an integer number (2631867210).

Almost surely, 2^53305748540 is an apocalyptic number.

It is an amenable number.

53305748540 is an abundant number, since it is smaller than the sum of its proper divisors (73023877540).

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

53305748540 is a wasteful number, since it uses less digits than its factorization.

53305748540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8355182 (or 8355180 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 53305748540 in words is "fifty-three billion, three hundred five million, seven hundred forty-eight thousand, five hundred forty".