53106540 has 96 divisors (see below), whose sum is σ = 160634880. Its totient is φ = 13069056.

The previous prime is 53106523. The next prime is 53106553. The reversal of 53106540 is 4560135.

It is a self number, because there is not a number n which added to its sum of digits gives 53106540.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39357 + ... + 40683.

It is an arithmetic number, because the mean of its divisors is an integer number (1673280).

Almost surely, 2^53106540 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 53106540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80317440).

53106540 is an abundant number, since it is smaller than the sum of its proper divisors (107528340).

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

53106540 is a wasteful number, since it uses less digits than its factorization.

53106540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 53106540 is about 7287.4234129766. The cubic root of 53106540 is about 375.8801017288.

Adding to 53106540 its reverse (4560135), we get a palindrome (57666675).

The spelling of 53106540 in words is "fifty-three million, one hundred six thousand, five hundred forty".