545979557 has 8 divisors (see below), whose sum is σ = 559008384. Its totient is φ = 532965888.

The previous prime is 545979529. The next prime is 545979587. The reversal of 545979557 is 755979545.

It is a happy number.

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 545979557 - 2¹⁰ = 545978533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545979517) 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, 106853 + ... + 111845.

It is an arithmetic number, because the mean of its divisors is an integer number (69876048).

Almost surely, 2^545979557 is an apocalyptic number.

It is an amenable number.

545979557 is a deficient number, since it is larger than the sum of its proper divisors (13028827).

545979557 is a wasteful number, since it uses less digits than its factorization.

545979557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579.

The product of its digits is 9922500, while the sum is 56.

The square root of 545979557 is about 23366.2054471838. The cubic root of 545979557 is about 817.3200017688.

The spelling of 545979557 in words is "five hundred forty-five million, nine hundred seventy-nine thousand, five hundred fifty-seven".