54653643 has 24 divisors (see below), whose sum is σ = 89003600. Its totient is φ = 33121440.

The previous prime is 54653639. The next prime is 54653659. The reversal of 54653643 is 34635645.

54653643 is a `hidden beast` number, since 5 + 4 + 6 + 5 + 3 + 643 = 666.

It is not a de Polignac number, because 54653643 - 2² = 54653639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54653598 and 54653607.

It is not an unprimeable number, because it can be changed into a prime (54653663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5098 + ... + 11631.

Almost surely, 2^54653643 is an apocalyptic number.

54653643 is a deficient number, since it is larger than the sum of its proper divisors (34349957).

54653643 is a wasteful number, since it uses less digits than its factorization.

54653643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16760 (or 16743 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 54653643 is about 7392.8102234536. The cubic root of 54653643 is about 379.4952740432.

The spelling of 54653643 in words is "fifty-four million, six hundred fifty-three thousand, six hundred forty-three".