54899813 has 8 divisors (see below), whose sum is σ = 57003480. Its totient is φ = 52810240.

The previous prime is 54899809. The next prime is 54899821. The reversal of 54899813 is 31899845.

54899813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12623809 + 42276004 = 3553^2 + 6502^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54899813 - 2² = 54899809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54899893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4781 + ... + 11517.

It is an arithmetic number, because the mean of its divisors is an integer number (7125435).

Almost surely, 2^54899813 is an apocalyptic number.

It is an amenable number.

54899813 is a deficient number, since it is larger than the sum of its proper divisors (2103667).

54899813 is a wasteful number, since it uses less digits than its factorization.

54899813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7047.

The product of its digits is 311040, while the sum is 47.

The square root of 54899813 is about 7409.4408021119. The cubic root of 54899813 is about 380.0641927565.

The spelling of 54899813 in words is "fifty-four million, eight hundred ninety-nine thousand, eight hundred thirteen".