54509247 has 32 divisors (see below), whose sum is σ = 87917760. Its totient is φ = 33177600.

The previous prime is 54509243. The next prime is 54509261. The reversal of 54509247 is 74290545.

It is not a de Polignac number, because 54509247 - 2² = 54509243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54509243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33247 + ... + 34847.

It is an arithmetic number, because the mean of its divisors is an integer number (2747430).

Almost surely, 2^54509247 is an apocalyptic number.

54509247 is a deficient number, since it is larger than the sum of its proper divisors (33408513).

54509247 is a wasteful number, since it uses less digits than its factorization.

54509247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720 (or 1714 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 54509247 is about 7383.0377894197. The cubic root of 54509247 is about 379.1607679529.

It can be divided in two parts, 54509 and 247, that added together give a square (54756 = 234²).

The spelling of 54509247 in words is "fifty-four million, five hundred nine thousand, two hundred forty-seven".