54872047 has 4 divisors (see below), whose sum is σ = 55533240. Its totient is φ = 54210856.

The previous prime is 54872011. The next prime is 54872087. The reversal of 54872047 is 74027845.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54872047 - 2⁷ = 54871919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54871997 and 54872015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54872087) 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, 330472 + ... + 330637.

It is an arithmetic number, because the mean of its divisors is an integer number (13883310).

Almost surely, 2^54872047 is an apocalyptic number.

54872047 is a deficient number, since it is larger than the sum of its proper divisors (661193).

54872047 is an equidigital number, since it uses as much as digits as its factorization.

54872047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661192.

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 54872047 is about 7407.5668744872. The cubic root of 54872047 is about 380.0001084949. Note that the first 3 decimals are identical.

The spelling of 54872047 in words is "fifty-four million, eight hundred seventy-two thousand, forty-seven".