545553620 has 12 divisors (see below), whose sum is σ = 1145662644. Its totient is φ = 218221440.

The previous prime is 545553559. The next prime is 545553649. The reversal of 545553620 is 26355545.

It can be written as a sum of positive squares in 2 ways, for example, as 100681156 + 444872464 = 10034^2 + 21092^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13638821 + ... + 13638860.

It is an arithmetic number, because the mean of its divisors is an integer number (95471887).

Almost surely, 2^545553620 is an apocalyptic number.

It is an amenable number.

545553620 is an abundant number, since it is smaller than the sum of its proper divisors (600109024).

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

545553620 is a wasteful number, since it uses less digits than its factorization.

545553620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27277690 (or 27277688 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The square root of 545553620 is about 23357.0892878372. The cubic root of 545553620 is about 817.1074068753.

The spelling of 545553620 in words is "five hundred forty-five million, five hundred fifty-three thousand, six hundred twenty".