1255429001500 has 48 divisors (see below), whose sum is σ = 2742007990176. Its totient is φ = 502143936000.

The previous prime is 1255429001473. The next prime is 1255429001501. The reversal of 1255429001500 is 51009245521.

It is a super-2 number, since 2×1255429001500² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255429001501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10687084 + ... + 10803916.

It is an arithmetic number, because the mean of its divisors is an integer number (57125166462).

Almost surely, 2^{1255429001500} is an apocalyptic number.

1255429001500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255429001500 is an abundant number, since it is smaller than the sum of its proper divisors (1486578988676).

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

1255429001500 is a wasteful number, since it uses less digits than its factorization.

1255429001500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138343 (or 138331 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 1255429001500 in words is "one trillion, two hundred fifty-five billion, four hundred twenty-nine million, one thousand, five hundred".