53166540 has 96 divisors (see below), whose sum is σ = 171924480. Its totient is φ = 12024576.

The previous prime is 53166517. The next prime is 53166551. The reversal of 53166540 is 4566135.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 53166498 and 53166507.

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, 42646 + ... + 43874.

It is an arithmetic number, because the mean of its divisors is an integer number (1790880).

Almost surely, 2^53166540 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 53166540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85962240).

53166540 is an abundant number, since it is smaller than the sum of its proper divisors (118757940).

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

53166540 is a wasteful number, since it uses less digits than its factorization.

53166540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 53166540 is about 7291.5389322145. The cubic root of 53166540 is about 376.0216054433.

The spelling of 53166540 in words is "fifty-three million, one hundred sixty-six thousand, five hundred forty".