255003031240 has 16 divisors (see below), whose sum is σ = 573756820380. Its totient is φ = 102001212480.

The previous prime is 255003031189. The next prime is 255003031267. The reversal of 255003031240 is 42130300552.

It can be written as a sum of positive squares in 2 ways, for example, as 253731823524 + 1271207716 = 503718^2 + 35654^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3187537851 + ... + 3187537930.

Almost surely, 2^255003031240 is an apocalyptic number.

255003031240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255003031240 is an abundant number, since it is smaller than the sum of its proper divisors (318753789140).

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

255003031240 is a wasteful number, since it uses less digits than its factorization.

255003031240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6375075792 (or 6375075788 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 255003031240 its reverse (42130300552), we get a palindrome (297133331792).

The spelling of 255003031240 in words is "two hundred fifty-five billion, three million, thirty-one thousand, two hundred forty".