1255341542405 has 64 divisors (see below), whose sum is σ = 1636652908800. Its totient is φ = 921355223040.

The previous prime is 1255341542401. The next prime is 1255341542407. The reversal of 1255341542405 is 5042451435521.

It is a happy number.

It is not a de Polignac number, because 1255341542405 - 2² = 1255341542401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255341542401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 497952545 + ... + 497955065.

It is an arithmetic number, because the mean of its divisors is an integer number (25572701700).

Almost surely, 2^{1255341542405} is an apocalyptic number.

It is an amenable number.

1255341542405 is a deficient number, since it is larger than the sum of its proper divisors (381311366395).

1255341542405 is a wasteful number, since it uses less digits than its factorization.

1255341542405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 1255341542405 its reverse (5042451435521), we get a palindrome (6297792977926).

The spelling of 1255341542405 in words is "one trillion, two hundred fifty-five billion, three hundred forty-one million, five hundred forty-two thousand, four hundred five".