1255171704 has 64 divisors (see below), whose sum is σ = 3223493280. Its totient is φ = 407040000.

The previous prime is 1255171657. The next prime is 1255171747. The reversal of 1255171704 is 4071715521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392994 + ... + 396174.

Almost surely, 2^1255171704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255171704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1611746640).

1255171704 is an abundant number, since it is smaller than the sum of its proper divisors (1968321576).

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

1255171704 is a wasteful number, since it uses less digits than its factorization.

1255171704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632 (or 3628 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 1255171704 is about 35428.4025042056. The cubic root of 1255171704 is about 1078.7009140058.

It can be divided in two parts, 12551 and 71704, that added together give a triangular number (84255 = T₄₁₀).

The spelling of 1255171704 in words is "one billion, two hundred fifty-five million, one hundred seventy-one thousand, seven hundred four".