545315904 has 189 divisors, whose sum is σ = 1831416327. Its totient is φ = 154683648.

The previous prime is 545315873. The next prime is 545315909. The reversal of 545315904 is 409513545.

The square root of 545315904 is 23352.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (545315909) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3923067 + ... + 3923205.

Almost surely, 2^545315904 is an apocalyptic number.

545315904 is the 23352-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545315904

545315904 is an abundant number, since it is smaller than the sum of its proper divisors (1286100423).

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

545315904 is a wasteful number, since it uses less digits than its factorization.

545315904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The cubic root of 545315904 is about 816.9887092709.

Multiplying 545315904 by its sum of digits (36), we get a square (19631372544 = 140112²).

545315904 divided by its sum of digits (36) gives a square (15147664 = 3892²).

The spelling of 545315904 in words is "five hundred forty-five million, three hundred fifteen thousand, nine hundred four".