545556001 has 8 divisors (see below), whose sum is σ = 555224384. Its totient is φ = 535911120.

The previous prime is 545555999. The next prime is 545556023. The reversal of 545556001 is 100655545.

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

It is a cyclic number.

It is not a de Polignac number, because 545556001 - 2¹ = 545555999 is a prime.

It is a super-2 number, since 2×545556001² = 595262700454224002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545556031) 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, 44770 + ... + 55636.

It is an arithmetic number, because the mean of its divisors is an integer number (69403048).

Almost surely, 2^545556001 is an apocalyptic number.

It is an amenable number.

545556001 is a deficient number, since it is larger than the sum of its proper divisors (9668383).

545556001 is a wasteful number, since it uses less digits than its factorization.

545556001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11751.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 545556001 is about 23357.1402573175. The cubic root of 545556001 is about 817.1085955944.

The spelling of 545556001 in words is "five hundred forty-five million, five hundred fifty-six thousand, one".