253994489560 has 32 divisors (see below), whose sum is σ = 653128688160. Its totient is φ = 87083824896.

The previous prime is 253994489557. The next prime is 253994489677. The reversal of 253994489560 is 65984499352.

It is a junction number, because it is equal to n+sod(n) for n = 253994489492 and 253994489501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453561309 + ... + 453561868.

It is an arithmetic number, because the mean of its divisors is an integer number (20410271505).

Almost surely, 2^253994489560 is an apocalyptic number.

253994489560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253994489560 is an abundant number, since it is smaller than the sum of its proper divisors (399134198600).

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

253994489560 is a wasteful number, since it uses less digits than its factorization.

253994489560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907123195 (or 907123191 counting only the distinct ones).

The product of its (nonzero) digits is 83980800, while the sum is 64.

The spelling of 253994489560 in words is "two hundred fifty-three billion, nine hundred ninety-four million, four hundred eighty-nine thousand, five hundred sixty".