539551601 has 8 divisors (see below), whose sum is σ = 543132480. Its totient is φ = 535982832.

The previous prime is 539551577. The next prime is 539551619. The reversal of 539551601 is 106155935.

It is a happy number.

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-539551601 is a prime.

It is a super-2 number, since 2×539551601² = 582231860283326402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (539551631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96971 + ... + 102383.

It is an arithmetic number, because the mean of its divisors is an integer number (67891560).

Almost surely, 2^539551601 is an apocalyptic number.

It is an amenable number.

539551601 is a deficient number, since it is larger than the sum of its proper divisors (3580879).

539551601 is a wasteful number, since it uses less digits than its factorization.

539551601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055.

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 539551601 is about 23228.2500632312. The cubic root of 539551601 is about 814.0998258687.

The spelling of 539551601 in words is "five hundred thirty-nine million, five hundred fifty-one thousand, six hundred one".