545879515 has 4 divisors (see below), whose sum is σ = 655055424. Its totient is φ = 436703608.

The previous prime is 545879507. The next prime is 545879533. The reversal of 545879515 is 515978545.

545879515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 545879515 - 2³ = 545879507 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, 54587947 + ... + 54587956.

It is an arithmetic number, because the mean of its divisors is an integer number (163763856).

Almost surely, 2^545879515 is an apocalyptic number.

545879515 is a deficient number, since it is larger than the sum of its proper divisors (109175909).

545879515 is a wasteful number, since it uses less digits than its factorization.

545879515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109175908.

The product of its digits is 1260000, while the sum is 49.

The square root of 545879515 is about 23364.0646078545. The cubic root of 545879515 is about 817.2700784575.

The spelling of 545879515 in words is "five hundred forty-five million, eight hundred seventy-nine thousand, five hundred fifteen".