54158065 has 8 divisors (see below), whose sum is σ = 69988968. Its totient is φ = 39993600.

The previous prime is 54158063. The next prime is 54158131. The reversal of 54158065 is 56085145.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 223729 + 53934336 = 473^2 + 7344^2 .

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

It is not a de Polignac number, because 54158065 - 2¹ = 54158063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54158065.

It is not an unprimeable number, because it can be changed into a prime (54158063) 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, 416536 + ... + 416665.

It is an arithmetic number, because the mean of its divisors is an integer number (8748621).

Almost surely, 2^54158065 is an apocalyptic number.

It is an amenable number.

54158065 is a deficient number, since it is larger than the sum of its proper divisors (15830903).

54158065 is a wasteful number, since it uses less digits than its factorization.

54158065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833219.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 54158065 is about 7359.2163305613. The cubic root of 54158065 is about 378.3447509390.

The spelling of 54158065 in words is "fifty-four million, one hundred fifty-eight thousand, sixty-five".