54012505 has 4 divisors (see below), whose sum is σ = 64815012. Its totient is φ = 43210000.

The previous prime is 54012493. The next prime is 54012547. The reversal of 54012505 is 50521045.

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 7595536 + 46416969 = 2756^2 + 6813^2 .

It is a de Polignac number, because none of the positive numbers 2^k-54012505 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 5401246 + ... + 5401255.

It is an arithmetic number, because the mean of its divisors is an integer number (16203753).

Almost surely, 2^54012505 is an apocalyptic number.

It is an amenable number.

54012505 is a deficient number, since it is larger than the sum of its proper divisors (10802507).

54012505 is a wasteful number, since it uses less digits than its factorization.

54012505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10802506.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 54012505 is about 7349.3200365748. The cubic root of 54012505 is about 378.0054892216.

The spelling of 54012505 in words is "fifty-four million, twelve thousand, five hundred five".