54640464 has 40 divisors (see below), whose sum is σ = 143151552. Its totient is φ = 17955840.

The previous prime is 54640463. The next prime is 54640471. The reversal of 54640464 is 46404645.

54640464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×54640464² = 5971160612270592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54640463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4609 + ... + 11424.

Almost surely, 2^54640464 is an apocalyptic number.

It is an amenable number.

54640464 is an abundant number, since it is smaller than the sum of its proper divisors (88511088).

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

54640464 is a wasteful number, since it uses less digits than its factorization.

54640464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16115 (or 16109 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 54640464 is about 7391.9188307232. The cubic root of 54640464 is about 379.4647681763.

The spelling of 54640464 in words is "fifty-four million, six hundred forty thousand, four hundred sixty-four".