545508572 has 96 divisors (see below), whose sum is σ = 1185408000. Its totient is φ = 219084096.

The previous prime is 545508559. The next prime is 545508599. The reversal of 545508572 is 275805545.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1861658 + ... + 1861950.

It is an arithmetic number, because the mean of its divisors is an integer number (12348000).

Almost surely, 2^545508572 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 545508572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592704000).

545508572 is an abundant number, since it is smaller than the sum of its proper divisors (639899428).

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

545508572 is a wasteful number, since it uses less digits than its factorization.

545508572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 41.

The square root of 545508572 is about 23356.1249354425. The cubic root of 545508572 is about 817.0849159192.

It can be divided in two parts, 545 and 508572, that multiplied together give a triangular number (277171740 = T₂₃₅₄₄).

The spelling of 545508572 in words is "five hundred forty-five million, five hundred eight thousand, five hundred seventy-two".