54973869 has 24 divisors (see below), whose sum is σ = 78542880. Its totient is φ = 34193664.

The previous prime is 54973861. The next prime is 54973873. The reversal of 54973869 is 96837945.

It is not a de Polignac number, because 54973869 - 2³ = 54973861 is a prime.

It is a super-2 number, since 2×54973869² = 6044252545658322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54973861) 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, 141127 + ... + 141515.

It is an arithmetic number, because the mean of its divisors is an integer number (3272620).

Almost surely, 2^54973869 is an apocalyptic number.

It is an amenable number.

54973869 is a deficient number, since it is larger than the sum of its proper divisors (23569011).

54973869 is a wasteful number, since it uses less digits than its factorization.

54973869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 572 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 54973869 is about 7414.4365261293. The cubic root of 54973869 is about 380.2350092926.

The spelling of 54973869 in words is "fifty-four million, nine hundred seventy-three thousand, eight hundred sixty-nine".