555656601 has 4 divisors (see below), whose sum is σ = 740875472. Its totient is φ = 370437732.

The previous prime is 555656599. The next prime is 555656657. The reversal of 555656601 is 106656555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 555656601 - 2¹ = 555656599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 555656601.

It is not an unprimeable number, because it can be changed into a prime (555656201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92609431 + ... + 92609436.

It is an arithmetic number, because the mean of its divisors is an integer number (185218868).

Almost surely, 2^555656601 is an apocalyptic number.

It is an amenable number.

555656601 is a deficient number, since it is larger than the sum of its proper divisors (185218871).

555656601 is a wasteful number, since it uses less digits than its factorization.

555656601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185218870.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 555656601 is about 23572.3694396639. The cubic root of 555656601 is about 822.1205283212.

The spelling of 555656601 in words is "five hundred fifty-five million, six hundred fifty-six thousand, six hundred one".