54463865 has 4 divisors (see below), whose sum is σ = 65356644. Its totient is φ = 43571088.

The previous prime is 54463837. The next prime is 54463891. The reversal of 54463865 is 56836445.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9560464 + 44903401 = 3092^2 + 6701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54463865 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5446382 + ... + 5446391.

It is an arithmetic number, because the mean of its divisors is an integer number (16339161).

Almost surely, 2^54463865 is an apocalyptic number.

It is an amenable number.

54463865 is a deficient number, since it is larger than the sum of its proper divisors (10892779).

54463865 is a wasteful number, since it uses less digits than its factorization.

54463865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10892778.

The product of its digits is 345600, while the sum is 41.

The square root of 54463865 is about 7379.9637532985. The cubic root of 54463865 is about 379.0555145484.

The spelling of 54463865 in words is "fifty-four million, four hundred sixty-three thousand, eight hundred sixty-five".