1255005155530 has 32 divisors (see below), whose sum is σ = 2582594294400. Its totient is φ = 430142581440.

The previous prime is 1255005155473. The next prime is 1255005155531. The reversal of 1255005155530 is 355515005521.

It is a super-3 number, since 3×1255005155530³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1255005155530.

It is not an unprimeable number, because it can be changed into a prime (1255005155531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2809305 + ... + 3225244.

It is an arithmetic number, because the mean of its divisors is an integer number (80706071700).

Almost surely, 2^{1255005155530} is an apocalyptic number.

1255005155530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255005155530 is an abundant number, since it is smaller than the sum of its proper divisors (1327589138870).

1255005155530 is a wasteful number, since it uses less digits than its factorization.

1255005155530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6037534.

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 1255005155530 in words is "one trillion, two hundred fifty-five billion, five million, one hundred fifty-five thousand, five hundred thirty".