54399147 has 32 divisors (see below), whose sum is σ = 84913920. Its totient is φ = 30625920.

The previous prime is 54399143. The next prime is 54399151. The reversal of 54399147 is 74199345.

54399147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54399143) and next prime (54399151).

It is not a de Polignac number, because 54399147 - 2² = 54399143 is a prime.

It is a super-3 number, since 3×54399147³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54399099 and 54399108.

It is not an unprimeable number, because it can be changed into a prime (54399143) 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 31 ways as a sum of consecutive naturals, for example, 32413 + ... + 34049.

It is an arithmetic number, because the mean of its divisors is an integer number (2653560).

Almost surely, 2^54399147 is an apocalyptic number.

54399147 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

54399147 is a deficient number, since it is larger than the sum of its proper divisors (30514773).

54399147 is a wasteful number, since it uses less digits than its factorization.

54399147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723.

The product of its digits is 136080, while the sum is 42.

The square root of 54399147 is about 7375.5777400825. The cubic root of 54399147 is about 378.9053144233.

The spelling of 54399147 in words is "fifty-four million, three hundred ninety-nine thousand, one hundred forty-seven".