55317764 has 12 divisors (see below), whose sum is σ = 99929088. Its totient is φ = 26766600.

The previous prime is 55317749. The next prime is 55317781. The reversal of 55317764 is 46771355.

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, 222932 + ... + 223179.

It is an arithmetic number, because the mean of its divisors is an integer number (8327424).

Almost surely, 2^55317764 is an apocalyptic number.

It is an amenable number.

55317764 is a deficient number, since it is larger than the sum of its proper divisors (44611324).

55317764 is a wasteful number, since it uses less digits than its factorization.

55317764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446146 (or 446144 counting only the distinct ones).

The product of its digits is 88200, while the sum is 38.

The square root of 55317764 is about 7437.5912767508. The cubic root of 55317764 is about 381.0262288394.

The spelling of 55317764 in words is "fifty-five million, three hundred seventeen thousand, seven hundred sixty-four".