545611788 has 72 divisors (see below), whose sum is σ = 1447712448. Its totient is φ = 179652816.

The previous prime is 545611769. The next prime is 545611793. The reversal of 545611788 is 887116545.

545611788 is a `hidden beast` number, since 5 + 4 + 561 + 1 + 7 + 88 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77295 + ... + 84057.

Almost surely, 2^545611788 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 545611788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723856224).

545611788 is an abundant number, since it is smaller than the sum of its proper divisors (902100660).

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

545611788 is a wasteful number, since it uses less digits than its factorization.

545611788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6865 (or 6851 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 545611788 is about 23358.3344440480. The cubic root of 545611788 is about 817.1364463762.

The spelling of 545611788 in words is "five hundred forty-five million, six hundred eleven thousand, seven hundred eighty-eight".