5011778 has 6 divisors (see below), whose sum is σ = 7522419. Its totient is φ = 2504306.

The previous prime is 5011771. The next prime is 5011781. The reversal of 5011778 is 8771105.

It can be written as a sum of positive squares in only one way, i.e., 2505889 + 2505889 = 1583^2 + 1583^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1583.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5011778.

It is not an unprimeable number, because it can be changed into a prime (5011771) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2375 + ... + 3957.

Almost surely, 2^5011778 is an apocalyptic number.

5011778 is a deficient number, since it is larger than the sum of its proper divisors (2510641).

5011778 is an frugal number, since it uses more digits than its factorization.

5011778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 5011778 is about 2238.7000692366. The cubic root of 5011778 is about 171.1317566901.

The spelling of 5011778 in words is "five million, eleven thousand, seven hundred seventy-eight".