54351247 has 4 divisors (see below), whose sum is σ = 54426736. Its totient is φ = 54275760.

The previous prime is 54351239. The next prime is 54351251. The reversal of 54351247 is 74215345.

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 54351247 - 2³ = 54351239 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 (54351287) 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, 36654 + ... + 38107.

It is an arithmetic number, because the mean of its divisors is an integer number (13606684).

Almost surely, 2^54351247 is an apocalyptic number.

54351247 is a deficient number, since it is larger than the sum of its proper divisors (75489).

54351247 is an equidigital number, since it uses as much as digits as its factorization.

54351247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75488.

The product of its digits is 16800, while the sum is 31.

The square root of 54351247 is about 7372.3298217049. The cubic root of 54351247 is about 378.7940694545.

The spelling of 54351247 in words is "fifty-four million, three hundred fifty-one thousand, two hundred forty-seven".