545306580 has 384 divisors, whose sum is σ = 2129218560. Its totient is φ = 114213888.

The previous prime is 545306579. The next prime is 545306581. The reversal of 545306580 is 85603545.

545306580 is a `hidden beast` number, since 5 + 45 + 30 + 6 + 580 = 666.

It is an interprime number because it is at equal distance from previous prime (545306579) and next prime (545306581).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545306581) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3980272 + ... + 3980408.

It is an arithmetic number, because the mean of its divisors is an integer number (5544840).

Almost surely, 2^545306580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545306580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1064609280).

545306580 is an abundant number, since it is smaller than the sum of its proper divisors (1583911980).

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

545306580 is a wasteful number, since it uses less digits than its factorization.

545306580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 545306580 is about 23351.8003588588. The cubic root of 545306580 is about 816.9840528591.

The spelling of 545306580 in words is "five hundred forty-five million, three hundred six thousand, five hundred eighty".