53275257540 has 144 divisors (see below), whose sum is σ = 164098037376. Its totient is φ = 13987814400.

The previous prime is 53275257533. The next prime is 53275257547. The reversal of 53275257540 is 4575257235.

53275257540 is a `hidden beast` number, since 5 + 3 + 2 + 7 + 52 + 57 + 540 = 666.

It is an interprime number because it is at equal distance from previous prime (53275257533) and next prime (53275257547).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (53275257547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11282380 + ... + 11287100.

It is an arithmetic number, because the mean of its divisors is an integer number (1139569704).

Almost surely, 2^53275257540 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 53275257540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82049018688).

53275257540 is an abundant number, since it is smaller than the sum of its proper divisors (110822779836).

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

53275257540 is a wasteful number, since it uses less digits than its factorization.

53275257540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5690 (or 5685 counting only the distinct ones).

The product of its (nonzero) digits is 1470000, while the sum is 45.

The spelling of 53275257540 in words is "fifty-three billion, two hundred seventy-five million, two hundred fifty-seven thousand, five hundred forty".