54312005 has 8 divisors (see below), whose sum is σ = 71099424. Its totient is φ = 39499600.

The previous prime is 54311987. The next prime is 54312007. The reversal of 54312005 is 50021345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54312005 - 2⁶ = 54311941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54312007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493691 + ... + 493800.

It is an arithmetic number, because the mean of its divisors is an integer number (8887428).

Almost surely, 2^54312005 is an apocalyptic number.

54312005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54312005 is a deficient number, since it is larger than the sum of its proper divisors (16787419).

54312005 is a wasteful number, since it uses less digits than its factorization.

54312005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987507.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 54312005 is about 7369.6679029655. The cubic root of 54312005 is about 378.7028834708.

The spelling of 54312005 in words is "fifty-four million, three hundred twelve thousand, five".