55778696 has 16 divisors (see below), whose sum is σ = 107136540. Its totient is φ = 27208960.

The previous prime is 55778689. The next prime is 55778713. The reversal of 55778696 is 69687755.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35402500 + 20376196 = 5950^2 + 4514^2 .

It is a super-2 number, since 2×55778696² = 6222525854920832, which contains 22 as substring.

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, 84701 + ... + 85356.

Almost surely, 2^55778696 is an apocalyptic number.

It is an amenable number.

55778696 is a deficient number, since it is larger than the sum of its proper divisors (51357844).

55778696 is a wasteful number, since it uses less digits than its factorization.

55778696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170104 (or 170100 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 53.

The square root of 55778696 is about 7468.5136406115. The cubic root of 55778696 is about 382.0815958296.

The spelling of 55778696 in words is "fifty-five million, seven hundred seventy-eight thousand, six hundred ninety-six".