1255079578 has 8 divisors (see below), whose sum is σ = 1943349120. Its totient is φ = 607296540.

The previous prime is 1255079563. The next prime is 1255079611. The reversal of 1255079578 is 8759705521.

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

It is a super-2 number, since 2×1255079578² = 3150449494225316168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10121548 + ... + 10121671.

It is an arithmetic number, because the mean of its divisors is an integer number (242918640).

Almost surely, 2^1255079578 is an apocalyptic number.

1255079578 is a deficient number, since it is larger than the sum of its proper divisors (688269542).

1255079578 is a wasteful number, since it uses less digits than its factorization.

1255079578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20243252.

The product of its (nonzero) digits is 882000, while the sum is 49.

The square root of 1255079578 is about 35427.1023088257. The cubic root of 1255079578 is about 1078.6745221766.

The spelling of 1255079578 in words is "one billion, two hundred fifty-five million, seventy-nine thousand, five hundred seventy-eight".