555541601 has 8 divisors (see below), whose sum is σ = 571864104. Its totient is φ = 539435520.

The previous prime is 555541577. The next prime is 555541621. The reversal of 555541601 is 106145555.

555541601 = 2345² + 2346² + ... + 2441².

It can be written as a sum of positive squares in 4 ways, for example, as 169026001 + 386515600 = 13001^2 + 19660^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555541601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555541621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48890 + ... + 59171.

It is an arithmetic number, because the mean of its divisors is an integer number (71483013).

Almost surely, 2^555541601 is an apocalyptic number.

It is an amenable number.

555541601 is a deficient number, since it is larger than the sum of its proper divisors (16322503).

555541601 is a wasteful number, since it uses less digits than its factorization.

555541601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108211.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 555541601 is about 23569.9300168668. The cubic root of 555541601 is about 822.0638084072.

The spelling of 555541601 in words is "five hundred fifty-five million, five hundred forty-one thousand, six hundred one".