545272477 has 4 divisors (see below), whose sum is σ = 568980000. Its totient is φ = 521564956.

The previous prime is 545272459. The next prime is 545272487. The reversal of 545272477 is 774272545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545272477 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 (545272417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11853727 + ... + 11853772.

It is an arithmetic number, because the mean of its divisors is an integer number (142245000).

Almost surely, 2^545272477 is an apocalyptic number.

It is an amenable number.

545272477 is a deficient number, since it is larger than the sum of its proper divisors (23707523).

545272477 is a wasteful number, since it uses less digits than its factorization.

545272477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23707522.

The product of its digits is 548800, while the sum is 43.

The square root of 545272477 is about 23351.0701467834. The cubic root of 545272477 is about 816.9670213463.

The spelling of 545272477 in words is "five hundred forty-five million, two hundred seventy-two thousand, four hundred seventy-seven".