1255430510401 has 6 divisors (see below), whose sum is σ = 1333623414470. Its totient is φ = 1181581656576.

The previous prime is 1255430510381. The next prime is 1255430510419. The reversal of 1255430510401 is 1040150345521.

It can be written as a sum of positive squares in 3 ways, for example, as 234473850625 + 1020956659776 = 484225^2 + 1010424^2 .

It is not a de Polignac number, because 1255430510401 - 2³¹ = 1253283026753 is a prime.

It is a super-2 number, since 2×1255430510401² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255430517401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2172024816 + ... + 2172025393.

Almost surely, 2^{1255430510401} is an apocalyptic number.

It is an amenable number.

1255430510401 is a deficient number, since it is larger than the sum of its proper divisors (78192904069).

1255430510401 is an equidigital number, since it uses as much as digits as its factorization.

1255430510401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344050243 (or 4344050226 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 1255430510401 its reverse (1040150345521), we get a palindrome (2295580855922).

The spelling of 1255430510401 in words is "one trillion, two hundred fifty-five billion, four hundred thirty million, five hundred ten thousand, four hundred one".