55756776 has 32 divisors (see below), whose sum is σ = 139911840. Its totient is φ = 18516288.

The previous prime is 55756769. The next prime is 55756777. The reversal of 55756776 is 67765755.

It is not an unprimeable number, because it can be changed into a prime (55756777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2455 + ... + 10841.

It is an arithmetic number, because the mean of its divisors is an integer number (4372245).

Almost surely, 2^55756776 is an apocalyptic number.

It is an amenable number.

55756776 is an abundant number, since it is smaller than the sum of its proper divisors (84155064).

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

55756776 is a wasteful number, since it uses less digits than its factorization.

55756776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8673 (or 8669 counting only the distinct ones).

The product of its digits is 1543500, while the sum is 48.

The square root of 55756776 is about 7467.0460022689. The cubic root of 55756776 is about 382.0315389290.

The spelling of 55756776 in words is "fifty-five million, seven hundred fifty-six thousand, seven hundred seventy-six".