255301555040 has 48 divisors (see below), whose sum is σ = 689314201632. Its totient is φ = 87531961344.

The previous prime is 255301555001. The next prime is 255301555043. The reversal of 255301555040 is 40555103552.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255301555043) by changing a digit.

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, 113972789 + ... + 113975028.

It is an arithmetic number, because the mean of its divisors is an integer number (14360712534).

Almost surely, 2^255301555040 is an apocalyptic number.

255301555040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255301555040 is an abundant number, since it is smaller than the sum of its proper divisors (434012646592).

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

255301555040 is a wasteful number, since it uses less digits than its factorization.

255301555040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227947839 (or 227947831 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

Adding to 255301555040 its reverse (40555103552), we get a palindrome (295856658592).

The spelling of 255301555040 in words is "two hundred fifty-five billion, three hundred one million, five hundred fifty-five thousand, forty".