1255276302521 has 2 divisors, whose sum is σ = 1255276302522. Its totient is φ = 1255276302520.

The previous prime is 1255276302509. The next prime is 1255276302587. The reversal of 1255276302521 is 1252036725521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 841872311296 + 413403991225 = 917536^2 + 642965^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255276302521 - 2²² = 1255272108217 is a prime.

It is a super-2 number, since 2×1255276302521² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1255276302221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627638151260 + 627638151261.

It is an arithmetic number, because the mean of its divisors is an integer number (627638151261).

Almost surely, 2^{1255276302521} is an apocalyptic number.

It is an amenable number.

1255276302521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255276302521 is an equidigital number, since it uses as much as digits as its factorization.

1255276302521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 1255276302521 in words is "one trillion, two hundred fifty-five billion, two hundred seventy-six million, three hundred two thousand, five hundred twenty-one".