1255305200 has 60 divisors (see below), whose sum is σ = 3089468928. Its totient is φ = 489868800.

The previous prime is 1255305193. The next prime is 1255305251. The reversal of 1255305200 is 25035521.

It is a super-2 number, since 2×1255305200² = 3151582290294080000, 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 11 ways as a sum of consecutive naturals, for example, 21872 + ... + 54671.

Almost surely, 2^1255305200 is an apocalyptic number.

1255305200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255305200 is an abundant number, since it is smaller than the sum of its proper divisors (1834163728).

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

1255305200 is a wasteful number, since it uses less digits than its factorization.

1255305200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76602 (or 76591 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 1255305200 is about 35430.2864792257. The cubic root of 1255305200 is about 1078.7391550295.

The spelling of 1255305200 in words is "one billion, two hundred fifty-five million, three hundred five thousand, two hundred".