53266540 has 24 divisors (see below), whose sum is σ = 113279040. Its totient is φ = 21036288.

The previous prime is 53266531. The next prime is 53266547. The reversal of 53266540 is 4566235.

It is not an unprimeable number, because it can be changed into a prime (53266547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15277 + ... + 18436.

It is an arithmetic number, because the mean of its divisors is an integer number (4719960).

Almost surely, 2^53266540 is an apocalyptic number.

It is an amenable number.

53266540 is an abundant number, since it is smaller than the sum of its proper divisors (60012500).

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

53266540 is a wasteful number, since it uses less digits than its factorization.

53266540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33801 (or 33799 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 53266540 is about 7298.3929737991. The cubic root of 53266540 is about 376.2572085756.

The spelling of 53266540 in words is "fifty-three million, two hundred sixty-six thousand, five hundred forty".