255140406 has 12 divisors (see below), whose sum is σ = 552804252. Its totient is φ = 85046796.

The previous prime is 255140401. The next prime is 255140407. The reversal of 255140406 is 604041552.

255140406 is a `hidden beast` number, since 255 + 1 + 4 + 0 + 406 = 666.

255140406 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 255140406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255140401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7087216 + ... + 7087251.

It is an arithmetic number, because the mean of its divisors is an integer number (46067021).

Almost surely, 2^255140406 is an apocalyptic number.

255140406 is an abundant number, since it is smaller than the sum of its proper divisors (297663846).

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

255140406 is a wasteful number, since it uses less digits than its factorization.

255140406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14174475 (or 14174472 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 255140406 is about 15973.1151000674. The cubic root of 255140406 is about 634.2489361349.

Adding to 255140406 its reverse (604041552), we get a palindrome (859181958).

The spelling of 255140406 in words is "two hundred fifty-five million, one hundred forty thousand, four hundred six".