56777751 has 6 divisors (see below), whose sum is σ = 82012320. Its totient is φ = 37851828.

The previous prime is 56777729. The next prime is 56777761. The reversal of 56777751 is 15777765.

56777751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56777751 - 2⁹ = 56777239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56777697 and 56777706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56777701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3154311 + ... + 3154328.

It is an arithmetic number, because the mean of its divisors is an integer number (13668720).

Almost surely, 2^56777751 is an apocalyptic number.

56777751 is a deficient number, since it is larger than the sum of its proper divisors (25234569).

56777751 is a wasteful number, since it uses less digits than its factorization.

56777751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308645 (or 6308642 counting only the distinct ones).

The product of its digits is 360150, while the sum is 45.

The square root of 56777751 is about 7535.1012601026. The cubic root of 56777751 is about 384.3492712503.

The spelling of 56777751 in words is "fifty-six million, seven hundred seventy-seven thousand, seven hundred fifty-one".