56778072 has 32 divisors (see below), whose sum is σ = 152864880. Its totient is φ = 17470080.

The previous prime is 56778067. The next prime is 56778101. The reversal of 56778072 is 27087765.

56778072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 90679 + ... + 91302.

Almost surely, 2^56778072 is an apocalyptic number.

56778072 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

56778072 is an abundant number, since it is smaller than the sum of its proper divisors (96086808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56778072 is a wasteful number, since it uses less digits than its factorization.

56778072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182003 (or 181999 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 56778072 is about 7535.1225603835. The cubic root of 56778072 is about 384.3499955709.

It can be divided in two parts, 56 and 778072, that added together give a triangular number (778128 = T₁₂₄₇).

The spelling of 56778072 in words is "fifty-six million, seven hundred seventy-eight thousand, seventy-two".