54562640 has 40 divisors (see below), whose sum is σ = 138392928. Its totient is φ = 19840640.

The previous prime is 54562637. The next prime is 54562691. The reversal of 54562640 is 4626545.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 54562597 and 54562606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30122 + ... + 31881.

Almost surely, 2^54562640 is an apocalyptic number.

It is an amenable number.

54562640 is an abundant number, since it is smaller than the sum of its proper divisors (83830288).

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

54562640 is a wasteful number, since it uses less digits than its factorization.

54562640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62027 (or 62021 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 54562640 is about 7386.6528279052. The cubic root of 54562640 is about 379.2845263095.

The spelling of 54562640 in words is "fifty-four million, five hundred sixty-two thousand, six hundred forty".