1255256170 has 64 divisors (see below), whose sum is σ = 2661186816. Its totient is φ = 417415680.

The previous prime is 1255256143. The next prime is 1255256207. The reversal of 1255256170 is 716525521.

It is a super-4 number, since 4×1255256170⁴ (a number of 37 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309697 + ... + 313723.

It is an arithmetic number, because the mean of its divisors is an integer number (41581044).

Almost surely, 2^1255256170 is an apocalyptic number.

1255256170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255256170 is an abundant number, since it is smaller than the sum of its proper divisors (1405930646).

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

1255256170 is a wasteful number, since it uses less digits than its factorization.

1255256170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 1255256170 is about 35429.5945503191. The cubic root of 1255256170 is about 1078.7251102990.

The spelling of 1255256170 in words is "one billion, two hundred fifty-five million, two hundred fifty-six thousand, one hundred seventy".