1251352450255 has 4 divisors (see below), whose sum is σ = 1501622940312. Its totient is φ = 1001081960200.

The previous prime is 1251352450247. The next prime is 1251352450273. The reversal of 1251352450255 is 5520542531521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1251352450255 - 2³ = 1251352450247 is a prime.

It is a super-3 number, since 3×1251352450255³ (a number of 37 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

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, 125135245021 + ... + 125135245030.

It is an arithmetic number, because the mean of its divisors is an integer number (375405735078).

Almost surely, 2^{1251352450255} is an apocalyptic number.

1251352450255 is a deficient number, since it is larger than the sum of its proper divisors (250270490057).

1251352450255 is an equidigital number, since it uses as much as digits as its factorization.

1251352450255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250270490056.

The product of its (nonzero) digits is 300000, while the sum is 40.

Adding to 1251352450255 its reverse (5520542531521), we get a palindrome (6771894981776).

The spelling of 1251352450255 in words is "one trillion, two hundred fifty-one billion, three hundred fifty-two million, four hundred fifty thousand, two hundred fifty-five".