1078256057 has 8 divisors (see below), whose sum is σ = 1093342536. Its totient is φ = 1063267072.

The previous prime is 1078256021. The next prime is 1078256087. The reversal of 1078256057 is 7506528701.

It can be written as a sum of positive squares in 4 ways, for example, as 119486761 + 958769296 = 10931^2 + 30964^2 .

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 1078256057 - 2⁶ = 1078255993 is a prime.

It is a super-2 number, since 2×1078256057² = 2325272248914374498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1078256087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1958 + ... + 46479.

It is an arithmetic number, because the mean of its divisors is an integer number (136667817).

Almost surely, 2^1078256057 is an apocalyptic number.

It is an amenable number.

1078256057 is a deficient number, since it is larger than the sum of its proper divisors (15086479).

1078256057 is a wasteful number, since it uses less digits than its factorization.

1078256057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48747.

The product of its (nonzero) digits is 117600, while the sum is 41.

The square root of 1078256057 is about 32836.8094826522. The cubic root of 1078256057 is about 1025.4330296446.

The spelling of 1078256057 in words is "one billion, seventy-eight million, two hundred fifty-six thousand, fifty-seven".