1255200636 has 24 divisors (see below), whose sum is σ = 2929530240. Its totient is φ = 418296112.

The previous prime is 1255200623. The next prime is 1255200641. The reversal of 1255200636 is 6360025521.

It is a super-2 number, since 2×1255200636² = 3151057273229608992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 49075 + ... + 70133.

It is an arithmetic number, because the mean of its divisors is an integer number (122063760).

Almost surely, 2^1255200636 is an apocalyptic number.

It is an amenable number.

1255200636 is an abundant number, since it is smaller than the sum of its proper divisors (1674329604).

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

1255200636 is a wasteful number, since it uses less digits than its factorization.

1255200636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26033 (or 26031 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1255200636 is about 35428.8108183156. The cubic root of 1255200636 is about 1078.7092020446.

The spelling of 1255200636 in words is "one billion, two hundred fifty-five million, two hundred thousand, six hundred thirty-six".