1265255200 has 72 divisors (see below), whose sum is σ = 3369628080. Its totient is φ = 460089600.

The previous prime is 1265255197. The next prime is 1265255207. The reversal of 1265255200 is 25525621.

It is a super-2 number, since 2×1265255200² = 3201741442254080000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1265255207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63090 + ... + 80689.

It is an arithmetic number, because the mean of its divisors is an integer number (46800390).

Almost surely, 2^1265255200 is an apocalyptic number.

1265255200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1265255200 is an abundant number, since it is smaller than the sum of its proper divisors (2104372880).

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

1265255200 is a wasteful number, since it uses less digits than its factorization.

1265255200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143810 (or 143797 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1265255200 is about 35570.4259181697. The cubic root of 1265255200 is about 1081.5818155883.

The spelling of 1265255200 in words is "one billion, two hundred sixty-five million, two hundred fifty-five thousand, two hundred".