1255783051 has 8 divisors (see below), whose sum is σ = 1285487280. Its totient is φ = 1226101632.

The previous prime is 1255783043. The next prime is 1255783063. The reversal of 1255783051 is 1503875521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255783051 - 2³ = 1255783043 is a prime.

It is a super-3 number, since 3×1255783051³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1255783051.

It is not an unprimeable number, because it can be changed into a prime (1255783021) by changing a digit.

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, 165231 + ... + 172663.

It is an arithmetic number, because the mean of its divisors is an integer number (160685910).

Almost surely, 2^1255783051 is an apocalyptic number.

1255783051 is a deficient number, since it is larger than the sum of its proper divisors (29704229).

1255783051 is an equidigital number, since it uses as much as digits as its factorization.

1255783051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11405.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 1255783051 is about 35437.0293760637. The cubic root of 1255783051 is about 1078.8760171487.

The spelling of 1255783051 in words is "one billion, two hundred fifty-five million, seven hundred eighty-three thousand, fifty-one".