53286540 has 24 divisors (see below), whose sum is σ = 149202480. Its totient is φ = 14209728.

The previous prime is 53286539. The next prime is 53286559. The reversal of 53286540 is 4568235.

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, 443995 + ... + 444114.

It is an arithmetic number, because the mean of its divisors is an integer number (6216770).

Almost surely, 2^53286540 is an apocalyptic number.

It is an amenable number.

53286540 is an abundant number, since it is smaller than the sum of its proper divisors (95915940).

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

53286540 is a wasteful number, since it uses less digits than its factorization.

53286540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888121 (or 888119 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 53286540 is about 7299.7630098518. The cubic root of 53286540 is about 376.3042938098.

The spelling of 53286540 in words is "fifty-three million, two hundred eighty-six thousand, five hundred forty".