255549949012 has 24 divisors (see below), whose sum is σ = 454848105600. Its totient is φ = 125593879296.

The previous prime is 255549948919. The next prime is 255549949013. The reversal of 255549949012 is 210949945552.

It is a super-2 number, since 2×255549949012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255549949013) 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, 1995588 + ... + 2119780.

It is an arithmetic number, because the mean of its divisors is an integer number (18952004400).

Almost surely, 2^255549949012 is an apocalyptic number.

It is an amenable number.

255549949012 is a deficient number, since it is larger than the sum of its proper divisors (199298156588).

255549949012 is a wasteful number, since it uses less digits than its factorization.

255549949012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132975 (or 132973 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 55.

The spelling of 255549949012 in words is "two hundred fifty-five billion, five hundred forty-nine million, nine hundred forty-nine thousand, twelve".