54786664 has 8 divisors (see below), whose sum is σ = 102725010. Its totient is φ = 27393328.

The previous prime is 54786661. The next prime is 54786679. The reversal of 54786664 is 46668745.

It can be written as a sum of positive squares in only one way, i.e., 51696100 + 3090564 = 7190^2 + 1758^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×54786664³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (54786661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3424159 + ... + 3424174.

Almost surely, 2^54786664 is an apocalyptic number.

It is an amenable number.

54786664 is a deficient number, since it is larger than the sum of its proper divisors (47938346).

54786664 is a wasteful number, since it uses less digits than its factorization.

54786664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6848339 (or 6848335 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 54786664 is about 7401.8014023615. The cubic root of 54786664 is about 379.8029079502.

The spelling of 54786664 in words is "fifty-four million, seven hundred eighty-six thousand, six hundred sixty-four".