54140823 has 48 divisors (see below), whose sum is σ = 90979200. Its totient is φ = 30680640.

The previous prime is 54140813. The next prime is 54140843. The reversal of 54140823 is 32804145.

54140823 is a `hidden beast` number, since 541 + 40 + 82 + 3 = 666.

It is not a de Polignac number, because 54140823 - 2⁶ = 54140759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54140813) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201133 + ... + 201401.

It is an arithmetic number, because the mean of its divisors is an integer number (1895400).

Almost surely, 2^54140823 is an apocalyptic number.

54140823 is a deficient number, since it is larger than the sum of its proper divisors (36838377).

54140823 is a wasteful number, since it uses less digits than its factorization.

54140823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 54140823 is about 7358.0447810543. The cubic root of 54140823 is about 378.3045961772.

Adding to 54140823 its reverse (32804145), we get a palindrome (86944968).

The spelling of 54140823 in words is "fifty-four million, one hundred forty thousand, eight hundred twenty-three".