253504255420240 has 160 divisors (see below), whose sum is σ = 684736542199296. Its totient is φ = 86259306209280.

The previous prime is 253504255420133. The next prime is 253504255420243. The reversal of 253504255420240 is 42024552405352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253504255420243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46387272 + ... + 51563431.

Almost surely, 2^{253504255420240} is an apocalyptic number.

253504255420240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253504255420240 is an abundant number, since it is smaller than the sum of its proper divisors (431232286779056).

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

253504255420240 is a wasteful number, since it uses less digits than its factorization.

253504255420240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97950917 (or 97950911 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 43.

The spelling of 253504255420240 in words is "two hundred fifty-three trillion, five hundred four billion, two hundred fifty-five million, four hundred twenty thousand, two hundred forty".