54640283 has 4 divisors (see below), whose sum is σ = 55141680. Its totient is φ = 54138888.

The previous prime is 54640279. The next prime is 54640303. The reversal of 54640283 is 38204645.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38204645 = 5 ⋅7640929.

It is a cyclic number.

It is not a de Polignac number, because 54640283 - 2² = 54640279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54640253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250535 + ... + 250752.

It is an arithmetic number, because the mean of its divisors is an integer number (13785420).

Almost surely, 2^54640283 is an apocalyptic number.

54640283 is a deficient number, since it is larger than the sum of its proper divisors (501397).

54640283 is a wasteful number, since it uses less digits than its factorization.

54640283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501396.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 54640283 is about 7391.9065876132. The cubic root of 54640283 is about 379.4643491755.

The spelling of 54640283 in words is "fifty-four million, six hundred forty thousand, two hundred eighty-three".