54396247 has 4 divisors (see below), whose sum is σ = 55661320. Its totient is φ = 53131176.

The previous prime is 54396239. The next prime is 54396263. The reversal of 54396247 is 74269345.

It is a happy number.

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 54396247 - 2³ = 54396239 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 (54396347) 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, 632472 + ... + 632557.

It is an arithmetic number, because the mean of its divisors is an integer number (13915330).

Almost surely, 2^54396247 is an apocalyptic number.

54396247 is a deficient number, since it is larger than the sum of its proper divisors (1265073).

54396247 is a wasteful number, since it uses less digits than its factorization.

54396247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265072.

The product of its digits is 181440, while the sum is 40.

The square root of 54396247 is about 7375.3811426936. The cubic root of 54396247 is about 378.8985811992.

The spelling of 54396247 in words is "fifty-four million, three hundred ninety-six thousand, two hundred forty-seven".