655561424 has 20 divisors (see below), whose sum is σ = 1451600544. Its totient is φ = 280954848.

The previous prime is 655561393. The next prime is 655561471. The reversal of 655561424 is 424165556.

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, 2926502 + ... + 2926725.

Almost surely, 2^655561424 is an apocalyptic number.

It is an amenable number.

655561424 is an abundant number, since it is smaller than the sum of its proper divisors (796039120).

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

655561424 is a wasteful number, since it uses less digits than its factorization.

655561424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5853242 (or 5853236 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

The square root of 655561424 is about 25603.9337602643. The cubic root of 655561424 is about 868.7026172663.

The spelling of 655561424 in words is "six hundred fifty-five million, five hundred sixty-one thousand, four hundred twenty-four".