253540756608 has 32 divisors (see below), whose sum is σ = 673467635760. Its totient is φ = 84513585408.

The previous prime is 253540756607. The next prime is 253540756673. The reversal of 253540756608 is 806657045352.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×253540756608² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253540756603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330130810 + ... + 330131577.

Almost surely, 2^253540756608 is an apocalyptic number.

It is an amenable number.

253540756608 is an abundant number, since it is smaller than the sum of its proper divisors (419926879152).

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

253540756608 is an equidigital number, since it uses as much as digits as its factorization.

253540756608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660262404 (or 660262392 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 253540756608 in words is "two hundred fifty-three billion, five hundred forty million, seven hundred fifty-six thousand, six hundred eight".