54658840 has 16 divisors (see below), whose sum is σ = 122982480. Its totient is φ = 21863520.

The previous prime is 54658837. The next prime is 54658841. The reversal of 54658840 is 4885645.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1366471 = 54658840 / (5 + 4 + 6 + 5 + 8 + 8 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 54658793 and 54658802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54658841) 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, 683196 + ... + 683275.

It is an arithmetic number, because the mean of its divisors is an integer number (7686405).

Almost surely, 2^54658840 is an apocalyptic number.

It is an amenable number.

54658840 is an abundant number, since it is smaller than the sum of its proper divisors (68323640).

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

54658840 is a wasteful number, since it uses less digits than its factorization.

54658840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366482 (or 1366478 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 54658840 is about 7393.1617052517. The cubic root of 54658840 is about 379.5073023627.

The spelling of 54658840 in words is "fifty-four million, six hundred fifty-eight thousand, eight hundred forty".