1251502314255 has 48 divisors (see below), whose sum is σ = 2255987653920. Its totient is φ = 665576828928.

The previous prime is 1251502314253. The next prime is 1251502314317. The reversal of 1251502314255 is 5524132051521.

1251502314255 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 502 + 3 + 142 + 5 + 5 = 666.

It is not a de Polignac number, because 1251502314255 - 2¹ = 1251502314253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251502314253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1030090 + ... + 1887879.

It is an arithmetic number, because the mean of its divisors is an integer number (46999742790).

Almost surely, 2^{1251502314255} is an apocalyptic number.

1251502314255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1251502314255 is a deficient number, since it is larger than the sum of its proper divisors (1004485339665).

1251502314255 is an equidigital number, since it uses as much as digits as its factorization.

1251502314255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918342 (or 2918330 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 1251502314255 its reverse (5524132051521), we get a palindrome (6775634365776).

The spelling of 1251502314255 in words is "one trillion, two hundred fifty-one billion, five hundred two million, three hundred fourteen thousand, two hundred fifty-five".