253528012566 has 48 divisors (see below), whose sum is σ = 567101703168. Its totient is φ = 81772945200.

The previous prime is 253528012559. The next prime is 253528012567. The reversal of 253528012566 is 665210825352.

253528012566 is a `hidden beast` number, since 2 + 5 + 3 + 5 + 2 + 80 + 1 + 2 + 566 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253528012567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5303431 + ... + 5351021.

It is an arithmetic number, because the mean of its divisors is an integer number (11814618816).

Almost surely, 2^253528012566 is an apocalyptic number.

253528012566 is an abundant number, since it is smaller than the sum of its proper divisors (313573690602).

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

253528012566 is a wasteful number, since it uses less digits than its factorization.

253528012566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57177 (or 57174 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 253528012566 in words is "two hundred fifty-three billion, five hundred twenty-eight million, twelve thousand, five hundred sixty-six".