54640956 has 12 divisors (see below), whose sum is σ = 127495592. Its totient is φ = 18213648.

The previous prime is 54640909. The next prime is 54640969. The reversal of 54640956 is 65904645.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276695 + ... + 2276718.

Almost surely, 2^54640956 is an apocalyptic number.

It is an amenable number.

54640956 is an abundant number, since it is smaller than the sum of its proper divisors (72854636).

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

54640956 is a wasteful number, since it uses less digits than its factorization.

54640956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553420 (or 4553418 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 54640956 is about 7391.9521102345. The cubic root of 54640956 is about 379.4659071131.

The spelling of 54640956 in words is "fifty-four million, six hundred forty thousand, nine hundred fifty-six".