1255114520 has 64 divisors (see below), whose sum is σ = 3100528800. Its totient is φ = 453473280.

The previous prime is 1255114513. The next prime is 1255114543. The reversal of 1255114520 is 254115521.

It is a self number, because there is not a number n which added to its sum of digits gives 1255114520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59996 + ... + 78164.

Almost surely, 2^1255114520 is an apocalyptic number.

1255114520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255114520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1550264400).

1255114520 is an abundant number, since it is smaller than the sum of its proper divisors (1845414280).

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

1255114520 is a wasteful number, since it uses less digits than its factorization.

1255114520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18348 (or 18344 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1255114520 is about 35427.5954589075. The cubic root of 1255114520 is about 1078.6845323507.

It can be divided in two parts, 125511 and 4520, that added together give a palindrome (130031).

The spelling of 1255114520 in words is "one billion, two hundred fifty-five million, one hundred fourteen thousand, five hundred twenty".