545423520 has 48 divisors (see below), whose sum is σ = 1718085600. Its totient is φ = 145446144.

The previous prime is 545423507. The next prime is 545423537. The reversal of 545423520 is 25324545.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567670 + ... + 568629.

It is an arithmetic number, because the mean of its divisors is an integer number (35793450).

Almost surely, 2^545423520 is an apocalyptic number.

It is an amenable number.

545423520 is an abundant number, since it is smaller than the sum of its proper divisors (1172662080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545423520 is a wasteful number, since it uses less digits than its factorization.

545423520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136317 (or 1136309 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 545423520 is about 23354.3041001011. The cubic root of 545423520 is about 817.0424489310.

The spelling of 545423520 in words is "five hundred forty-five million, four hundred twenty-three thousand, five hundred twenty".