52705540 has 24 divisors (see below), whose sum is σ = 110843712. Its totient is φ = 21051360.

The previous prime is 52705529. The next prime is 52705579. The reversal of 52705540 is 4550725.

It is a junction number, because it is equal to n+sod(n) for n = 52705499 and 52705508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16255 + ... + 19225.

It is an arithmetic number, because the mean of its divisors is an integer number (4618488).

Almost surely, 2^52705540 is an apocalyptic number.

It is an amenable number.

52705540 is an abundant number, since it is smaller than the sum of its proper divisors (58138172).

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

52705540 is a wasteful number, since it uses less digits than its factorization.

52705540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3867 (or 3865 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 52705540 is about 7259.8581253355. The cubic root of 52705540 is about 374.9316379088.

The spelling of 52705540 in words is "fifty-two million, seven hundred five thousand, five hundred forty".