56122778 has 8 divisors (see below), whose sum is σ = 84454068. Its totient is φ = 27971424.

The previous prime is 56122769. The next prime is 56122817. The reversal of 56122778 is 87722165.

It can be written as a sum of positive squares in 2 ways, for example, as 55696369 + 426409 = 7463^2 + 653^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44201 + ... + 45452.

Almost surely, 2^56122778 is an apocalyptic number.

56122778 is a deficient number, since it is larger than the sum of its proper divisors (28331290).

56122778 is a wasteful number, since it uses less digits than its factorization.

56122778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89968.

The product of its digits is 47040, while the sum is 38.

The square root of 56122778 is about 7491.5137322173. The cubic root of 56122778 is about 382.8656346837.

The spelling of 56122778 in words is "fifty-six million, one hundred twenty-two thousand, seven hundred seventy-eight".