54125513 has 8 divisors (see below), whose sum is σ = 60299400. Its totient is φ = 48238848.

The previous prime is 54125441. The next prime is 54125521. The reversal of 54125513 is 31552145.

It can be written as a sum of positive squares in 4 ways, for example, as 64 + 54125449 = 8^2 + 7357^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 54125513 - 2⁸ = 54125257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54125543) 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, 71408 + ... + 72161.

It is an arithmetic number, because the mean of its divisors is an integer number (7537425).

Almost surely, 2^54125513 is an apocalyptic number.

It is an amenable number.

54125513 is a deficient number, since it is larger than the sum of its proper divisors (6173887).

54125513 is a wasteful number, since it uses less digits than its factorization.

54125513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143611.

The product of its digits is 3000, while the sum is 26.

The square root of 54125513 is about 7357.0043495977. The cubic root of 54125513 is about 378.2689336889.

Adding to 54125513 its reverse (31552145), we get a palindrome (85677658).

The spelling of 54125513 in words is "fifty-four million, one hundred twenty-five thousand, five hundred thirteen".