1255870895 has 8 divisors (see below), whose sum is σ = 1516070304. Its totient is φ = 998679904.

The previous prime is 1255870883. The next prime is 1255870907. The reversal of 1255870895 is 5980785521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1255870883) and next prime (1255870907).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255870895 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 751184 + ... + 752853.

It is an arithmetic number, because the mean of its divisors is an integer number (189508788).

Almost surely, 2^1255870895 is an apocalyptic number.

1255870895 is a deficient number, since it is larger than the sum of its proper divisors (260199409).

1255870895 is a wasteful number, since it uses less digits than its factorization.

1255870895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504209.

The product of its (nonzero) digits is 1008000, while the sum is 50.

The square root of 1255870895 is about 35438.2687923663. The cubic root of 1255870895 is about 1078.9011729203.

The spelling of 1255870895 in words is "one billion, two hundred fifty-five million, eight hundred seventy thousand, eight hundred ninety-five".