1255202340258 has 16 divisors (see below), whose sum is σ = 2521662103296. Its totient is φ = 416524542960.

The previous prime is 1255202340169. The next prime is 1255202340319. The reversal of 1255202340258 is 8520432025521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469057833 + ... + 469060508.

It is an arithmetic number, because the mean of its divisors is an integer number (157603881456).

Almost surely, 2^{1255202340258} is an apocalyptic number.

1255202340258 is an abundant number, since it is smaller than the sum of its proper divisors (1266459763038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255202340258 is a wasteful number, since it uses less digits than its factorization.

1255202340258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938118569.

The product of its (nonzero) digits is 192000, while the sum is 39.

Adding to 1255202340258 its reverse (8520432025521), we get a palindrome (9775634365779).

The spelling of 1255202340258 in words is "one trillion, two hundred fifty-five billion, two hundred two million, three hundred forty thousand, two hundred fifty-eight".