54537515 has 4 divisors (see below), whose sum is σ = 65445024. Its totient is φ = 43630008.

The previous prime is 54537499. The next prime is 54537533. The reversal of 54537515 is 51573545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51573545 = 5 ⋅10314709.

It is a cyclic number.

It is not a de Polignac number, because 54537515 - 2⁴ = 54537499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5453747 + ... + 5453756.

It is an arithmetic number, because the mean of its divisors is an integer number (16361256).

Almost surely, 2^54537515 is an apocalyptic number.

54537515 is a deficient number, since it is larger than the sum of its proper divisors (10907509).

54537515 is a wasteful number, since it uses less digits than its factorization.

54537515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10907508.

The product of its digits is 52500, while the sum is 35.

The square root of 54537515 is about 7384.9519294305. The cubic root of 54537515 is about 379.2262997353.

The spelling of 54537515 in words is "fifty-four million, five hundred thirty-seven thousand, five hundred fifteen".