1255440453051 has 8 divisors (see below), whose sum is σ = 1691177517904. Its totient is φ = 828331845120.

The previous prime is 1255440453049. The next prime is 1255440453149. The reversal of 1255440453051 is 1503540445521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1255440453051 - 2¹ = 1255440453049 is a prime.

It is a super-3 number, since 3×1255440453051³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255440453011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2157113890 + ... + 2157114471.

It is an arithmetic number, because the mean of its divisors is an integer number (211397189738).

Almost surely, 2^{1255440453051} is an apocalyptic number.

1255440453051 is a deficient number, since it is larger than the sum of its proper divisors (435737064853).

1255440453051 is an equidigital number, since it uses as much as digits as its factorization.

1255440453051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314228461.

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 1255440453051 its reverse (1503540445521), we get a palindrome (2758980898572).

The spelling of 1255440453051 in words is "one trillion, two hundred fifty-five billion, four hundred forty million, four hundred fifty-three thousand, fifty-one".